Dr Bhuiyan S. M. Ebna Hai Avatar

Dr Bhuiyan S. M. Ebna Hai

Research Fellow

To develop a dynamic career in a completely educational and research environment where obtained technical knowledge and skills will have the opportunity to be thoroughly utilized and at the same time experience in the relevant field will be enhanced with perfection. Prepare to face and handle any...
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experience

Research Assistant  
Faculty of Mechanical Engineering, July 2015 to Present, Hamburg Germany
(Helmut Schmidt University - University of the Federal Armed Forces Hamburg)
Finite Element Approximation of Ultrasonic Wave Propagation under Fluid-Structure Interaction (FSI) for Structural Health Monitoring (SHM) Systems.

Research Assistant  
Centre for Risk, Integrity and Safety Engineering (C-RISE), January 2015 to June 2015, St. John's, Newfoundland & Labrador Canada
(Memorial University of Newfoundland)
Numerical predictions and experimental investigation of serious hazard for marine operations: Marine icing and Hydrate formation.

Research Assistant  
Department of Mechanical Engineering, January 2013 to January 2015, Hamburg Germany
(Helmut Schmidt University, University of the Federal Armed Forces Hamburg)
Finite Element Approximation of Ultrasonic Wave Propagation under Fluid-Structure Interaction (FSI) for Structural Health Monitoring (SHM) Systems.

Teaching Assistant (TA)  
Institute of Numerical Simulation, April 2012 to July 2012, Hamburg Germany
(Technical University of Hamburg-Harburg (TUHH))
Mathematical Analysis-I

Teaching Assistant (TA)  
Institute of Mechanics and Ocean Engineering, November 2011 to October 2012, Hamburg Germany
(Technical University of Hamburg-Harburg (TUHH))
Mechanics-II, Mechanics-III.

Research Assistant (HiWi)  
Institute of Mechanics and Ocean Engineering, November 2011 to March 2012, Hamburg Germany
(Technical University of Hamburg-Harburg (TUHH))
Numerical Simulation of the Rogue Wave in Water Wave Tank.

Data base Software Engineer  
Hanseatic Real Estate, August 2011 to May 2012, Hamburg Germany

Data base Software RED-1.0

Senior Lecturer  
Department of Aeronautical Engineering, December 2009 to August 2010, Dhaka Bangladesh
(Military Institute of Science and Technology (MIST))
Teaching activities: Engineering Mechanics, Mechanics of Solids; Mechanics of Solids Laboratory; Numerical Analysis and Application; Numerical Analysis and Application Sessional; Workshop Technology Laboratory-I & II; Aeronautical Engineering Drawing-I & II; Computer Programming and Applications Sessional. Research activities: (a) Study on Mechanical Product Based Small and Medium Enterprises of Bangladesh and Improvement of A Selected Product; (b) An experimental investigation of wind load on tall buildings with hexagonal and octagonal cross-section; (c) Design and construction of a sub-sonic wind tunnel.

Lecturer  
Department of Mechanical Engineering, January 2008 to December 2009, Dhaka Bangladesh
(Military Institute of Science and Technology (MIST))
Teaching activities: Material Science; Material Science Laboratory; Machine Design Sessional; Heat Transfer Laboratory-I & II; Thermodynamics Laboratory; Fluid Machinery Sessional-I & II; Mechanical Engineering Drawing-I & II; Workshop Technology Laboratory-I & II; Introduction to Mechanical Engineering Laboratory. Research activities: (a) Design and Analysis of Unmanned Air Vehicle By Using NACA 0012 Airfoil Profile; (b) Design and Development of a windmill in Bangladesh prospects; (c) Design and construction of an experimental setup for determination of thermal contact conductance; (d) Design, Construction, and Analysis of a solar heater; (e) Study of aerodynamics over a full body aircraft; (f) Design and construction of an experimental setup for determination of thermal contact conductance.

Industrial Training  
PHP Float Glass Industries Limited., November 2006 to December 2006, Chittagong Bangladesh



education

Helmut Schmidt University - University of the Federal Armed Forces Hamburg  
Doctor of Science, Mechanical Engineering, Jan, 2013 to Oct, 2017
Doctoral Thesis: Finite Element Approximation of Ultrasonic Wave Propagation under Fluid-Structure Interaction for Structural Health Monitoring Systems

University of Hamburg, Germany  
M.Sc in Industrial Mathematics, Fluid Dynamics and Optimization, Jan, 2011 to Jan, 2012
Major Courses: Same as Erasmus Mundus M.Sc in Mathematical Modeling in Engineering Thesis: Numerical Approximation of Fluid Structure Interaction (FSI) Problem and Simplified Model for the Vertical Vibrations of the Aircraft Wing. Supervisors Prof. Dr.- Ing. habil Radoslaw Iwankiewicz & Prof. Dr. Winnifried Wollner. Project 1. Existence and convergence analysis of thickness optimization of an elastic beam. Supervisors Prof. Dr. Winnifried Wollner.

University of L'Aquila, Italy  
Erasmus Mundus M.Sc in Mathematical Modeling in Engineering, Numerical Simulation Techniques and Fluid Dynamics, Jan, 2010 to Jan, 2012
Major Courses: Applied Partial Differential Equations (PDEs), Control Systems, Dynamical Systems and Bifurcation theory, Fluid Dynamics, Algorithms and Data Structures, Numerical Approximation of PDEs by Finite Differences and Finite Volumes method, Numerical methods for PDEs - Finite Elements method, Optimization, Industrial seminar and Training, Traffic Flow, Advanced Fluid Dynamics, Optimization of Complex Systems, Computer Tomography, Optimal Control of ODEs. Thesis: Same as M.Sc in Industrial Mathematics. Project: 1. Mathematical modeling and convergence analysis of a catalytic converter, Supervisors Prof. Dr. Ingenuin Gasser. 2.1 A simple model of the liver Microcirculation, 2.2 Mathematical modeling of aerodynamic effect on cylinder with hexagonal cross-section, 2.3 Fluid motion in the posterior chamber of the eye Supervisors Prof. Dr. Rodolfo Repetto. 3. Mathematical modeling of multiple bifurcations of sample dynamical systems. Supervisors Prof. Dr.- Ing.Angelo Luongo.

University of Dhaka [Institute: Military Institute of Science and Technology]  
Bachelor of Science (B.Sc.), Mechanical Engineering Related Technologies/Technicians, Jan, 2004 to Jan, 2007
Major Courses: Mechatronics, Applied Aerodynamics, Power Plant Engineering, Automobile Engineering, Aircraft and Aero-engine structure, Computer Programming Language, Thermodynamics, Numerical Analysis, Mechanics of solids, Engineering Mechanics, Metallic Materials, Machine Design, Fluid Mechanics, Mechanics of Machinery, Heat and Mass Transfer, Instrumentation and measurement, Production process, Measurement and quality control, Industrial Management, Internal Combustion Engine, Refrigeration system, Machine Tools. Thesis: Study of Aerodynamics of a Cricket Ball. Supervisors Gp Capt Md. Abdus Salam, psc & Capt Md Munir Hassan, BN. Project: Pneumatic Speed Control System. Supervisors Prof. Dr. Mohammad Arif Hasan Mamun & Asst. Prof. Sumon Saha. Excursion: Bangladesh Machine Tools Factory (BMTF). Bangladesh Ordnance Factories (BOF). Bangladesh Air Force Base, Basser. Bangladesh Air Force Base, Kurmitola. Ananda Shipyard & Slipways Ltd. Bashundhara Shahjalal Newspaper Ltd. Milk Vita.

Government Science College, Dhaka  
Higher Secondary Certificate (H.S.C), Pure Science, Jan, 2001 to Jan, 2003


Narinda Government High School, Dhaka  
Secondary School Certificate (S.S.C), Pure Science, Jan, 1990 to Jan, 2001


projects

Observation of Rogue Wave in Water Wave Tank  by  Mr. Amin Chabchoub    
October, 2011 - March, 2012

Design and construction of a sub-sonic wind tunnel and Study of Wind effect on Tall Buildings  by  Bhuiyan Shameem Mahmood Ebna Hai, Md. Abdus Salam    
December, 2009 - August, 2010

Design and Analysis of Unmanned Air Vehicle (UAV) By Using NACA 0012 Aerofoil Profile.  by  Md. Abdus Salam    
January, 2008 - November, 2008
This research work is concerned with the application of conceptual design and determination of aerodynamic characteristics of Unmanned Air Vehicle (UAV). UAV is used for surveillance and reconnaissance to serve for the defense as well as national security and intelligence purpose. Here NACA 0012 aerofoil profile is used to design UAV by using CFD (Computational Fluid Dynamics) software. The aim of this research is to investigate the flow patterns and determine the aerodynamic characteristics of NACA 0012 profile by varying the angle of attack and Reynolds Number numerically. The research is carried out with symmetric aerofoil with the chord length of 0.1m. The research work explained different aerodynamic characteristics like lift force and drag force, lift and drag coefficient, pressure distribution over aerofoil etc.

A Critical Analysis of wind mill in Bangladesh prospects: Design and Performance Improvement  by  Md. Abdus Salam    
February, 2008 - November, 2008
The use of alternative renewable energy sources is necessary to achieve clean electric energy for loads. Wind energy is one of the renewable energy sources mostly available in the world. Wind energy can be used to provide mechanical energy or electric energy without producing pollutants. In Bangladesh, as in other countries, wind energy is being used in research domain for generating electricity, and for driving pumps primarily for irrigation. Wind data collected in some areas of Bangladesh are not prospective for wind power generation except in costal belts. An appropriate wind plant may be design to suit wind speed in Bangladesh. In this regard we have designed and developed a model of wind mill. This is newly specified which tried to match with the wind energy in Bangladesh. The potential of wind energy has not yet been folly explored in Bangladesh. Available reliable wind speed data are necessary for analyzing different wind plants. After performing such analysis appropriate wind plant may be identified for Bangladesh. Data collected by the meteorology department show wind speed too low for conventional wind plants. So, it is prospective here to design wind mill to be installed at low speed for small scale power generation.

Design and Construction of a subsonic wind tunnel and study of aerodynamics of a full body aircraft  by  Md. Abdus Salam, Bhuiyan Shameem Mahmood Ebna Hai    
February, 2008 - November, 2008
The best way to learn engineering is by doing engineering. In this project, to foster appropriate types of experiential learning a unique project created. This paper addresses one element of this overall effort- the design and construction of a wind tunnel facility to support hands-on learning by beginning engineering students and after that studied the aerodynamics and visualization of flow over the aircraft by smoke in the subsonic wind tunnel. In this project, a smoke generator is devised to provide smoke for facilitating the observation in experimental setup. This work is concerned with the nature and magnitude of certain transverse aerodynamic forces on aircraft in flight. The forces were measured for an aircraft in the experiment where the aircraft was fixed in a wind tunnel. The principal objectives were to provide a set of result for identifying the consideration of the factors on which the effect depends. The experiments supported many, but not all of the popular beliefs concerning the fact.

Design, construction, and Analysis of a solar heater  by  Bhuiyan Shameem Mahmood Ebna Hai    
January, 2008 - March, 2008
The objective of this project is to design and construct collector cum storage type solar water heater with plane absorber plate. The absorber that converts radiation energy into thermal energy and then transfers it to the water in the storage tank intercepts the energy from the sun. In the storage type solar water heater the rising of temperature ranges from 40° c to about 100° c which can be used for a variety of applications. The heater is mainly designed for the use of the domestic purpose. With some modifications recommended in this paper this heater can be effectively used for large temperature range that can serve even to generate steam. Along with other applications of solar energy, solar water heater is commonly used in many countries. This project is a simplest demonstration of solar energy utilization.

Design and construction of an experimental setup for determination of thermal contact conductance  by  Bhuiyan Shameem Mahmood Ebna Hai    
January, 2008 - April, 2008
The main objective of this project is to determine the thermal contact conductivity of a metal join by steady state method. Thermal contact conductivity is a measure of the ability of a substance to conduct heat in between two metals, determined by the rate of heat flow normally through an area and by minus the component of the temperature gradient in the direction of flow measured in watts per meter per Kelvin. In this project, heat flow is one dimensional that is temperature varies along X direction only. This is achieved by putting insulation on the circumferential surface of the specimen. The specimen material is isotropic. Here, no internal heat generation is allowed in the specimen. In this project a copper rod and a steel rod are used. Here steel rod is heated electrically at one end and is insulated in such a way that teat flow remain one dimensional to the other end of the copper rod for teat conduction study with a view to fulfill the objectives to plot temperature vs. distance curve from experimental measurements, to plot temperature vs. distance curve from theatrical and to determine the thermal conductivity of the metal specimen. All the experimental data are used are used to achieve these objectives.

publications

Study on Mechanical Product Based Small and Medium Enterprises of Bangladesh     
Published by (MIST Journal of Science & Technology)
Authors: Md. Abdus Salam and Bhuiyan Shameem Mahmood Ebna Hai.  Published February 10, 2010

ABSTRACT: Small and medium Enterprises (SME) plays a vital role in the economic development of country especially in the developing countries like Bangladesh. Keeping this concept an attempt has been made to survey the SME products of Bangladesh, study and improve the qualitative performance of a selected mechanical Engineering related SME product. The most difficult part of the project was the survey portion as related project/ research paper in this field is not relatively available. With almost effort lot of information has been gathered related to different range of SME products and related factors. For study and improvement of qualitative performance of cylinder and piston used in Conchi-4 R170 engine has been selected. On study it is formed that the local product quality effort was made for qualitative improvement but due to time constraint that could not be done. In subsequent projects steps may be taken for qualitative improvement using this analysis.

Study of Aerodynamics of a Cricket Ball     
Published by (LAP Lambert Academic Publishing)
Authors: Bhuiyan Shameem Mahmood Ebna Hai and Md. Abdus Salam.  Published November 12, 2012

This research is concerned with nature and aerodynamic behaviour of cricket ball in flight. Here aerodynamic characteristics of a cricket ball with a mass of 156 gm and approximate diameter of 70 mm are determined. A sample cricket ball was fixed with a shaft in a wind tunnel. The aerodynamic characteristics have been analyzed by varying the rotational rpm of the cricket ball, where the axis of rotation for seam and shaft are same and the pressure difference between the upper and the lower surface of the cricket ball are determined using static manometer. In addition some experimental works have been carried out and verified by comparing with those of the results obtained numerically. The upward pressure, that creates lift, has increased almost linearly with the increase of ball position angle to approximately 15 to 30 degree and it also decrease with increase of ball rotational speed. Finally some conclusions have been drawn on the basis of the experimental result.

Numerical Approximation of Fluid Structure Interaction (FSI) Problem     
Published by (LAP LAMBERT Academic Publishing)
Authors: Bhuiyan Shameem Mahmood Ebna Hai.  Published November 19, 2012

Now-a-days advanced composite materials are being applied to many aircraft structures in order to improve performance and save weight. But Aircraft wings can break due to FSI effect. Because of thrust force, turbulent flow, FSI plays an important role and complex mechanical effects are aroused. But only numerical approaches can be used to solve such problems due to nonlinear properties of fluid, material and shape of the structures. The principal aim of this research is to explore and understand the behaviour of the FSI during the impact of a deformable material (of aircraft wings) on air. This project is focused on the analysis of Navier-Stokes and Elastodynamics equations in the ALE frameworks in order to simulate numerically the FSI effect on a double wedge airfoil. Also one of the main aims of this research is to study the Euler-Bernoulli Beam, the static and dynamic response of a cantilever beam, for a simplified model to determine the vertical vibration of the aircraft wings. In this case we use Approximate method in order to determine the vertical vibration and finally we choose a suitable space-dependent function that satisfy the requirements at the boundaries.

The Development of Solar Tracking System     
Published by (LAP LAMBERT Academic Publishing)
Authors: Kaniz Ronak Sultana and Bhuiyan Shameem Mahmood Ebna Hai .  Published December 05, 2012

Energy is a strategic input necessary for socio-economic development. It helps in meeting basic human needs and it contributes to economic growth. The sun provides more than enough energy to sustain life on the planet. Much of this energy does not get utilized. Most solar panels are mounted in a fixed position, and as the day progresses the amount of irradiance is decreased where the sun is not directly in front of the panels. Therefore there is a decrease in the amount of energy absorbed by the collector. To make solar energy more viable, the efficiency of solar array systems must be maximized. A feasible approach to increase the efficiency of solar array system is sun tracking. Solar panels are presently a very expensive way to produce electricity. This project looks at tracking the position of the sun using a microcontroller and a stepper motor. The concept was to make the panel to follow the sun using a microcontroller and a stepper motor. The microcontroller was to instruct the stepper motor to rotate the panel and align continuously with the sun to absorb more light and produce more power.

Wind Loads on High Rise Buildings     
Published by (LAP LAMBERT Academic Publishing)
Authors: Kaniz Ronak Sultana, Amalesh Chandra Mandal and Bhuiyan Shameem Mahmood Ebna Hai.  Published December 07, 2012

An experimental investigation of surface static pressure distributions on hexagonal cylinder was conducted. The study was performed on both the single cylinder and the group consisting of two cylinders, one in the upstream and another in the downstream side. The test was conducted in an open circuit wind tunnel at a Reynolds number of 41300 based on the face width of the cylinder across the flow direction in a uniform flow of velocity 13.2 m/s. The study was done on the single cylinder at various angles of attack from 0 to 50 degree at a step of 10 degree. The surface pressure distributions were measured with the help of an inclined manometer. Then the group of two cylinders was taken into consideration for the study and the surface static pressures were measured for various interspacing of 1D, 2D, 3D, 4D, 6D & 8D, D being the width of the cylinder across the flow direction. In each case the wind velocity was kept constant at 13.2 m/s. The pressure coefficients were calculated from the measured values of the surface static pressure distributions on the cylinder. Finally the drag and lift coefficients were obtained from the pressure coefficients by the numerical integration method.

An Experimental Investigation of Wind Load on Tall Buildings with Hexagonal Cross-Section     
Published by (MIST Journal of Science & Technology, 2010 [ISSN: 2073-6444], vol 2, pp 56-62.)
Authors: Kaniz Ronak Sultana, Dr. Amalesh Chandra Mandal, Bhuiyan Shameem Mahmood Ebna Hai.  Published February 01, 2010

An experimental investigation of surface static pressure distributions on hexagonal cylinder was conducted. The study was performed on both the single cylinder and the group consisting of two cylinders, one in the upstream and another in the downstream side. The test was conducted in an open circuit wind tunnel at a Reynolds number of 41300 based on the face width of the cylinder across the flow direction in a uniform flow of velocity 13.2 m/s. The study was done on the single cylinder at various angles of attack from 0 to 50 degree at a step of 10 degree. The surface pressure distributions were measured with the help of an inclined manometer. Then the group of two cylinders was taken into consideration for the study and the surface static pressures were measured for various inter-spacing of 1D, 2D, 3D, 4D, 6D and 8D, D being the width of the cylinder across the flow direction. In each case the wind velocity was kept constant at 13.2 m/s. The pressure coefficients were calculated from the measured values of the surface static pressure distributions on the cylinder. Then the drag and lift coefficients were obtained from the pressure coefficients by the numerical integration method. It was observed that the drag coefficients become remarkably smaller compared to those for a sharp-edged square cylinder. It was also observed that at various angles of attack, the values of the lift coefficients were insignificant compared to those for a sharp-edged square cylinder. It can be further concluded that the hexagonal cylinder produces significantly low values of drag and lift forces and they approach to those of the cylinder with circular cross-section.

Study of Aerodynamics of a Cricket Ball     
Published by (MIST Journal of Science & Technology, 2009 [ISSN: 1999-2009], vol 1, pp 23-25.)
Authors: Bhuiyan Shameem Mahmood Ebna Hai, Gp Capt Md. Abdus Salam psc.  Published February 01, 2009

This research is concerned with the nature and aerodynamic behavior on cricket balls in flight. It is written to determine the aerodynamic characteristics of a cricket ball with a mass of 156 gm and approximate diameter of 70 mm, where a sample cricket ball was fixed with a shaft in a wind tunnel. The aerodynamic characteristics have been analyzed by varying the rotational rpm of the cricket ball, where the axis of rotation for seam and shaft is same and the pressure difference between the upper and the lower surface of the cricket ball determine by the help of static manometer. Some experimental works have also been carried out and compared with those of the results obtained numerically. The upward pressure, which creates lift, has increased almost linearly with the increase of ball position angle to approximately 15 to 30 degree and it also decrease with increase of ball rotational speed. Finally some conclusions have been drawn on the basis of the experimental result.

Numerical Approximation of Fluid Structure Interaction (FSI) Problem     
Published by (The ASME Fluids Engineering Division Summer Meeting 2013 (FEDSM2013), Incline Village, Nevada, USA.)
Authors: Bhuiyan Shameem Mahmood Ebna Hai.  Published July 07, 2013

Nowadays, advanced composite materials such as carbon fiber reinforced plastics (CFRP) are being applied to many aircraft structures in order to improve performance and reduce weight. Most composites have strong, stiff fibres in a matrix which is weaker and less stiff. However, aircraft wings can break due to Fluid-Structure Interaction (FSI) oscillations or material fatigue. The airflow around an airplane wing causes the wing to deform, while a wing deformation causes a change in the air pattern around it. Due to thrust force, turbulent flow and high speed, fluid-structure interaction (FSI) is very important and arouses complex mechanical effects. Due to the nonlinear properties of fluids and solids as well as the shape of the structures, only numerical approaches can be used to solve such problems. The principal aim of this research is to explore and understand the behaviour of the fluid-structure interaction during the impact of a deformable material (e.g. an aircraft wing) on air. This project focuses on the analysis of Navier-Stokes and elastodynamic equations in the arbitrary Lagrangian-Eulerian (ALE) frameworks in order to numerically simulate the FSI effect on a double wedge airfoil. Since analytical solutions are only available in special cases, the equation needs to be solved by numerical methods. Of all methods, the finite element method was chosen due to its special characteristics and for its implementation, the software package DOpElib.

Adaptive Multigrid Methods for FSI Optimization in an Aircraft and Design of Integrated SHM System     
Published by (ECCOMAS 2nd Young Investigators Conference (YIC2013) and PhD Olympiad 2013, Bordeaux, FRANCE)
Authors: Bhuiyan Shameem M. Ebna Hai, Dr. rer. nat. habil. Markus Bause.  Published September 02, 2013

Nowadays, advanced composite materials such as carbon fiber reinforced plastics (CFRP) are being applied to many aircraft structures in order to improve performance and reduce weight. Most composites have strong, stiff fibres in a matrix which is weaker and less stiff. However, aircraft wings can break due to Fluid-Structure Interaction (FSI) oscillations or material fatigue. Material inspection by piezoelectric induced ultrasonic waves is a relatively new and an intelligent technique to monitor the health of CFRP for damage detection in Non-Destructive Test (NDT). To design a Structural Health Monitoring (SHM) systems, it is important to understand phenomenologically and quantitatively wave propagation in CFRP and the influence of the geomaterial and mechanical properties of the structures. The principal aim of this research is to explore and understand the behaviour of engineering artefacts in a maritime environment, with a view to better integrating their design and operation from safety and economic viewpoints. To accelerate the design of SHM systems, the FSI effect on the wave propagation has to considered. Due to the nonlinear properties of fluids and solids as well as the shape of the structures, only numerical approaches can be used to solve FSI and wave propagation problems. Part of this research will focus on the analysis of Navier-Stokes and equations of elastodynamics in the arbitrary Lagrangian-Eulerian (ALE) framework, simultaneously we will study the mathematical modeling and numerical approximation of the propagation of time-harmonic elastic waves in a CFRP composite material. Also this project aims to develope efficient numerical methods for fluid-structure interaction and wave propagation phenomena, which combine modern techniques from PDE-constrained optimization, adaptive and multigrid simulation methods.

Numerical simulation of Fluid Structure Interaction (FSI) effect on an Aircraft wing.     
Published by (7th Ankara International Aerospace Conference (AIAC), Ankara TURKEY.)
Authors: Bhuiyan Shameem M. Ebna Hai.  Published September 11, 2013

Advanced composite materials are being applied to many aircraft structures to improve performance and reduce weight. However, aircraft wings can break due to Fluid-Structure Interaction (FSI) oscillations or material fatigue. The airflow around an airplane wing causes the wing to deform. While a wing deformation causes a change in the air pattern around it. Thrust force, turbulent flow and high speed, FSI plays an important role and complex mechanical effects are aroused. But due to nonlinear properties of fluid, material and shape of the structures, only numerical approaches can be used to solve such problems. This paper focuses on the analysis of a non-linear FSI problem and its solution in the finite element software package DOpElib: the deal.II based optimization library. The principal aim of this research is to explore and understand the behaviour of the FSI during the impact of a deformable material (of aircraft wing) on air. We briefly describe the analysis of Navier-Stokes and Elastodynamics equations in the Arbitrary Lagrangian-Eulerian (ALE) frameworks. This coupled problem is defined in a monolithic framework and fractional-step-theta time stepping scheme are implemented. Spatial discretization is based on a Galerkin finite element scheme. The non-linear system is solved by a Newton like method with different configurations.

Finite Element Approximation of Fluid Structure Interaction (FSI) Optimization in Arbitrary Lagrangi     
Published by (ASME 2013 International Mechanical Engineering Congress & Exposition (IMECE2013), San Diego, USA)
Authors: Bhuiyan Shameem Mahmood Ebna Hai, Dr. rer. nat. habil. Markus Bause.  Published November 13, 2013

Advanced composite materials such as Carbon Fiber Reinforced Plastics (CFRP) are being applied to many aircraft structures in order to improve performance and reduce weight. Most composites have strong, stiff fibers in a matrix which is weaker and less stiff. However, aircraft wings can break due to Fluid-Structure Interaction (FSI) oscillations or material fatigue. This paper focuses on the analysis of a non-linear fluid-structure interaction problem and its solution in the finite element software package DOpElib: the deal.II based optimization library. The principal aim of this research is to explore and understand the behaviour of the fluid-structure interaction during the impact of a deformable material (e.g. an aircraft wing) on air. Here we briefly describe the analysis of incompressible Navier-Stokes and Elastodynamic equations in the arbitrary Lagrangian-Eulerian (ALE) frameworks in order to numerically simulate the FSI effect on a double wedge airfoil. Since analytical solutions are only available in special cases, the equation needs to be solved by numerical methods. This coupled problem is defined in a monolithic framework and fractional-step-$\theta$ time stepping scheme are implemented. Spatial discretization is based on a Galerkin finite element scheme. The non-linear system is solved by a Newton method. The implementation using the software library package DOpElib and deal.II serves for the computation of different fluid-structure configurations.

Design and Fabrication of Lunar Dust Excavator Robot     
Published by (ASME 2013 International Mechanical Engineering Congress & Exposition (IMECE2013), San Diego, USA)
Authors: Md. Jalal Uddin Rumi, Gp Capt Md. Abdus Salam,, Bhuiyan Shameem Mahmood Ebna Hai.  Published November 13, 2013

Lunar rover has become an important topic in recent years. Scientists are always searching the existence of lives as well as trying to create a suitable environment for human living in other planets. But for man it is difficult to collect information or investigate the new environment due to adverse environmental conditions. As an alternative a robot can be designed to sustain this adverse environmental situation for collecting necessary information or investigation purposes. So a robot, capable of collecting lunar dust can be very helpful for environmental analysis of moon at a greater extent. In such a situation this paper presents a general framework for building a Robot for collecting lunar dust, its motion control, lifting the dust, and depositing dust in reservoir. The framework is instantiated to compute the requirements including power, networking, mechanical controlling, and electro mechanical interfacing. The Robot has been systematically fabricated by local components and tested for operational results in similar artificial environment as on the Moon.

Emergence of MIST in Educational Sector in Bangladesh     
Published by (Fusion Mechanical Engineering Magazine, MIST. vol 2, pp 23-27.)
Authors: Bhuiyan Shameem M. Ebna Hai.  Published August 01, 2006

Awards

DAAD Grant
The German Academic Exchange Service (DAAD) Grant for the SIAM-CSE2015.