Dheeman Bhuyan

Gauhati university, GIMT, Department of Mechanical Engineering, Faculty Member

Birla Institute of Technology, Mesra (Ranchi) India, MECHANICAL ENGINNERING, Postgraduate research student

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Mechanical engineering, biomedical design, prosthetics and rehabilitation, biomimetic design, biofluid dynamics

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Technion Israel Institute of Technology

Ariel University

Ghent University

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Papers by Dheeman Bhuyan

Flow Patterns of Blood Post Application of Cross Clamp During Cardiopulmonary Bypass

Physics of Fluids

Cardiopulmonary bypass (CPB) is a common procedure carried out to provide a fluid free and motion... more Cardiopulmonary bypass (CPB) is a common procedure carried out to provide a fluid free and motionless work field at the time of cardiac surgical procedures. To achieve CPB, cannulation of the aorta i.e., insertion of the aortic cannula into the aorta to complete the extracorporeal blood flow circuit, is essential. The flow patterns of blood during CPB are very different from physiological flow and as blood from the heart lung machine enters the aorta, which is never fully evacuated, these flow patterns are of particular importance. This work focusses on the flow patterns of the blood as it enters the aorta post placement of the cross clamp. The investigation showed the high velocity impingement of blood on the aortic wall resulting in the "Sandblasting" effect. High fluid shear rates are also seen in regions of the flow field. It also showed the recirculation patterns and the formation of eddies as well as the splashing of blood within the aorta, originating at the point o...

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Static structural analysis of piston valve of twin tube dampers

2017 2nd International Conference for Convergence in Technology (I2CT), 2017

In this article, we aim to study the structural properties of the piston valve of a twin tube dam... more In this article, we aim to study the structural properties of the piston valve of a twin tube damper. The valve is reverse engineered, with modeling done in PTC Creo and the analysis in ANSYS Workbench. The results of the analysis show that the components under the maximum stress are the valve spring and the bleeder. Hence the work focuses on the spring and the bleeder. The loading conditions are obtained from CFD analysis [1] of the valve. The stresses generated in the valve spring are seen to be within the permissible limits for the spring material. Also the deformation of the bleeder as well as the spring is seen.

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Design of Prosthetic Heart Valve and Application of Additive Manufacturing

Additive Manufacturing Technologies From an Optimization Perspective, 2019

Heart valve prostheses are well known and can be classified in two major types or categories: bio... more Heart valve prostheses are well known and can be classified in two major types or categories: biological and mechanical. Biological valves (i.e., Homografts and Heterografts) make use of animal tissue as the valving mechanism whereas mechanical valves make use of balls, disks, and other mechanical valving mechanism. Mechanical valves carry considerable risk and require lifelong medication. The design of these valves is usually done on a “one size fits all” basis, with only the diameter changing depending on the model being produced. The author seeks to present an application of additive manufacturing in the design process for mechanical valves. This is expected to provide patients with customized prostheses to match their physiology and reduce the risk associated with the implantation.

Static structural analysis of piston valve of twin tube dampers

2017 2nd International Conference for Convergence in Technology (I2CT), 2017

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Design of Prosthetic Heart Valve and Application of Additive Manufacturing

Additive Manufacturing Technologies From an Optimization Perspective, 2019

Design and Analysis of Base Valve of Twin Tube Dampers

Applied Mechanics and Materials, 2016

In this article we seek to model a base valve of a twin tube shock absorber and study the behavio... more In this article we seek to model a base valve of a twin tube shock absorber and study the behaviour of the valve under loaded conditions replacing a mono tube shock absorber. A top down approach was adopted for this work wherein a commercially available shock absorber was stripped down to obtain the individual valves inside. Product teardown was done for the various subassemblies and the base valve was isolated. Modelling was done in PTC Creo 2.0 and the FEA study for the stress and flow analysis was done using ANSYS 15.0. The materials as well as the hydraulic fluid selected for the design were validated and proved to give a better performance than a mono tube shock absorber currently being used in automobiles.

A Brief History of Prosthetics and Orthotics of the Lower Body and Their Types

Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement, 2021

Prosthetics and orthotics are items taken for granted in today's day and age. However, this h... more Prosthetics and orthotics are items taken for granted in today's day and age. However, this has not always been the case. The history of these everyday items is long and very colorful. In this chapter, the authors shed light on the history and development of prosthetics and orthotics of the lower body in order to better understand the current state of the art in the fields. A historical perspective is provided followed by enumeration of the types of devices and techniques available without going into the form and function of individual products.

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3D CAD Modelling and Computational Fluid Analysis of Piston Valve of Twin Tube Shock Absorbers

Materials Today: Proceedings, 2017

Abstract This study aims to generate a 3D CAD model of the piston valve and conduct CFD analysis ... more Abstract This study aims to generate a 3D CAD model of the piston valve and conduct CFD analysis of the same. The piston valve of the shock absorber is one of the more critical parts of the mechanism assembly as the motion of the piston through the fluid in the working chamber of the damper is the primary source of damping force in suspension systems. The design of the piston valve is reverse engineered from existing designs and modelling is done in CREO 2.0 using cloud point data generated using Coordinate Measuring Machine. Computational fluid analysis is done using FLUENT integrated into ANSYS15.0 Workbench.

Computational Fluid Flow Analysis of Base Valve for Twin Tube Shock Absorbers

Materials Today: Proceedings, 2017

Abstract In this article it is sought to deal with the flow analysis of base valve designs for tw... more Abstract In this article it is sought to deal with the flow analysis of base valve designs for twin tube shock absorbers. To obtain the valves, a top down approach was adopted and an existing shock absorber was torn down. The base valve of the same was obtained and reverse engineered. Coordinate acquisition was done for the various parts using a Coordinate Measuring Machine (CMM). Flow analysis was carried out using FLUENT integrated into ANSYS Workbench 15.0 on solid models of the base valve generated using PTC Creo 2.0. The results show that the velocity of the fluid in the system allows the system enough time for the fluid in the reserve chamber to enter the compression chamber of the pressure tube preventing aeration of the fluid. The results also show that the net forces acting on the system generate stresses lower than the yield strength of the material (structural Steel) used. The flow of the hydraulic fluid (SAE20W) is such that enough energy is dissipated by the system for effective damping to take place without raising the temperature of the hydraulic fluid beyond its auto ignition temperature hence validating the design in tune with its application in a automobile shock absorber.

Design of a Prosthetic Ankle Complex

Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement

Nature has, over a large span of geological time, engineered near perfect solutions to most probl... more Nature has, over a large span of geological time, engineered near perfect solutions to most problems humans face today. Motion of the limbs is one such area, and the cutting edge in the development of effective prostheses is biomimetics. Limb prostheses have been used by mankind for the better part of known history, and most of the technology currently available in prosthetics is not exclusively new. However, modern prosthetics either are uncomfortable—and the lack of flexion affects the gait of the patient—or too expensive for a large segment of the populace. This chapter seeks to study the mimicry of physiological systems through the design for an ankle prosthesis that includes a passive damper and mimics the shape and behavior of the natural ankle joint.

Designing of a Twin Tube Shock Absorber

Design and Optimization of Mechanical Engineering Products

Reverse engineering has become the one of the most relevant concepts in modern design doctrines. ... more Reverse engineering has become the one of the most relevant concepts in modern design doctrines. Advances in technology demand shorter lead time in the overall product development stage, especially in the automobile sector. Hence as a study in reverse engineering, the author has reverse engineered a twin tube shock absorber. The process involved the obtaining of subassemblies of the damper mechanism to generate a 3D CAD model of the damper in PTC CREO 2.0. The model was used to conduct static structural and CFD analysis of the same using ANSYS 15.0 Workbench. The data obtained was used as the datum for the design modifications and performance enhancement of the part. It was seen that the design of the piston valve was optimum hence modifications to the base valve were done. Following the generation of the datum, similar analyses were conducted on the modified assemblies. The results were compared to the datum for the selection of the most appropriate design. Four designs are analyze...

Numerical Investigation of Blood Flow Characteristics through Cannulated Aorta

Journal of Biomimetics, Biomaterials and Biomedical Engineering

Cannulation of the aorta is done in order to provide oxygenation and circulatory function through... more Cannulation of the aorta is done in order to provide oxygenation and circulatory function through the use of the heart lung machine during cardio-pulmonary bypass (CPB). The nature of the blood flow through the aorta and its ramifications during CPB is mostly linear as compared to the physiological flow, which is pulsatile in nature. This leads to the development of multiple morbidities caused by the development of emboli and atheromas. Perioperative postoperative care is necessitated by these conditions. As such the understanding of the blood flow characteristics is necessitated in order to effectively prevent the formation of emboli and to prevent the "Sandblasting" effect. The authors in this work seek to investigate the nature of blood flow through the aorta under such circumstances. The results obtained show the nature of blood flow in the cannulated aorta as well as the optimum angle of placement of the cannula with respect to the aortic wall.

Asian Journal of Convergence in Technology Review on the Anatomy and Biomechanics of the Foot-Ankle Complex

by Dheeman Bhuyan, Anakshi Das, and Jahnabi Baruah

In this article; we aim to review the literature available on the anatomy and biomechanics of the... more In this article; we aim to review the literature available on the anatomy and biomechanics of the foot-ankle complex where the main aim is to fill the gap present in the existing research literature that can lead to further development in the prosthesis design. This paper discusses the different joints and various ligaments and tendons which has a significant influence on the stability and biomechanical performance of the foot-ankle complex. It also has an insight on the ankle jointcomplexmotion including the degrees of freedom and linked movements.

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Static Structural Analysis of Piston Valve of Twin Tube Dampers

— In this article, we aim to study the structural properties of the piston valve of a twin tube d... more — In this article, we aim to study the structural properties of the piston valve of a twin tube damper. The valve is reverse engineered, with modeling done in PTC Creo and the analysis in ANSYS Workbench. The results of the analysis show that the components under the maximum stress are the valve spring and the bleeder. Hence the work focuses on the spring and the bleeder. The loading conditions are obtained from CFD analysis [1] of the valve. The stresses generated in the valve spring are seen to be within the permissible limits for the spring material. Also the deformation of the bleeder as well as the spring is seen.

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3D CAD MODELLING AND COMPUTATIONAL FLUID ANALYSIS OF PISTON VALVE OF TWIN TUBE SHOCK ABSORBERS

This study aims to generate a 3D CAD model of the piston valve and conduct CFD analysis of the sa... more This study aims to generate a 3D CAD model of the piston valve and conduct CFD analysis of the same. The piston valve of the shock absorber is one of the more critical parts of the mechanism assembly as the motion of the piston through the fluid in the working chamber of the damper is the primary source of damping force in suspension systems. The design of the piston valve is reverse engineered from existing designs and modelling is done in CREO 2.0 using cloud point data generated using Coordinate Measuring Machine. Computational fluid analysis is done using FLUENT integrated into ANSYS15.0 Workbench.

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Computational Fluid Flow Analysis of Base Valve for Twin Tube Shock Absorbers

by Dheeman Bhuyan, Kaushik Kumar, and K Kumar

In this article it is sought to deal with the flow analysis of base valve designs for twin tube s... more In this article it is sought to deal with the flow analysis of base valve designs for twin tube shock absorbers. To obtain the valves, a top down approach was adopted and an existing shock absorber was torn down. The base valve of the same was obtained and reverse engineered. Coordinate acquisition was done for the various parts using a Coordinate Measuring Machine (CMM). Flow analysis was carried out using FLUENT integrated into ANSYS Workbench 15.0 on solid models of the base valve generated using PTC Creo 2.0. The results show that the velocity of the fluid in the system allows the system enough time for the fluid in the reserve chamber to enter the compression chamber of the pressure tube preventing aeration of the fluid. The results also show that the net forces acting on the system generate stresses lower than the yield strength of the material (structural Steel) used. The flow of the hydraulic fluid (SAE20W) is such that enough energy is dissipated by the system for effective damping to take place without raising the temperature of the hydraulic fluid beyond its auto ignition temperature hence validating the design in tune with its application in a automobile shock absorber.

Download

Design and Analysis of Base Valve of Twin Tube Dampers

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Books by Dheeman Bhuyan

Design of Prosthetic Heart Valve and Application of Additive Manufacturing

Heart valve prostheses are well known and can be classified in two major types or categories: bio... more Heart valve prostheses are well known and can be classified in two major types or categories: biological and mechanical. Biological valves (i.e., Homografts and Heterografts) make use of animal tissue as the valving mechanism whereas mechanical valves make use of balls, disks, and other mechanical valving mechanism. Mechanical valves carry considerable risk and require lifelong medication. The design of these valves is usually done on a "one size fits all" basis, with only the diameter changing depending on the model being produced. The author seeks to present an application of additive manufacturing in the design process for mechanical valves. This is expected to provide patients with customized prostheses to match their physiology and reduce the risk associated with the implantation.

Chapter 5 Design of a Prosthetic Ankle Complex: A Study in Biomimetic System Design

Nature has, over a large span of geological time, engineered near perfect solutions to most probl... more Nature has, over a large span of geological time, engineered near perfect solutions to most problems humans face today. Motion of the limbs is one such area, and the cutting edge in the development of effective prostheses is biomimetics. Limb prostheses have been used by mankind for the better part of known history, and most of the technology currently available in prosthetics is not exclusively new. However, modern prosthetics either are uncomfortable-and the lack of flexion affects the gait of the patient-or too expensive for a large segment of the populace. This chapter seeks to study the mimicry of physiological systems through the design for an ankle prosthesis that includes a passive damper and mimics the shape and behavior of the natural ankle joint.

A Brief History of Prosthetics and Orthotics of the Lower Body and Their Types20190526 72374 ms8gro

Prosthetics and orthotics are items taken for granted in today's day and age. However, this has n... more Prosthetics and orthotics are items taken for granted in today's day and age. However, this has not always been the case. The history of these everyday items is long and very colorful. In this chapter, the authors shed light on the history and development of prosthetics and orthotics of the lower body in order to better understand the current state of the art in the fields. A historical perspective is provided followed by enumeration of the types of devices and techniques available without going into the form and function of individual products.

Download

Flow Patterns of Blood Post Application of Cross Clamp During Cardiopulmonary Bypass

Physics of Fluids

Download

Static structural analysis of piston valve of twin tube dampers

2017 2nd International Conference for Convergence in Technology (I2CT), 2017

Download

Design of Prosthetic Heart Valve and Application of Additive Manufacturing

Additive Manufacturing Technologies From an Optimization Perspective, 2019

Static structural analysis of piston valve of twin tube dampers

2017 2nd International Conference for Convergence in Technology (I2CT), 2017

Download

Design of Prosthetic Heart Valve and Application of Additive Manufacturing

Additive Manufacturing Technologies From an Optimization Perspective, 2019

Design and Analysis of Base Valve of Twin Tube Dampers

Applied Mechanics and Materials, 2016

A Brief History of Prosthetics and Orthotics of the Lower Body and Their Types

Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement, 2021

Download

3D CAD Modelling and Computational Fluid Analysis of Piston Valve of Twin Tube Shock Absorbers

Materials Today: Proceedings, 2017

Computational Fluid Flow Analysis of Base Valve for Twin Tube Shock Absorbers

Materials Today: Proceedings, 2017

Design of a Prosthetic Ankle Complex

Research Anthology on Emerging Technologies and Ethical Implications in Human Enhancement

Designing of a Twin Tube Shock Absorber

Design and Optimization of Mechanical Engineering Products

Numerical Investigation of Blood Flow Characteristics through Cannulated Aorta

Journal of Biomimetics, Biomaterials and Biomedical Engineering

Asian Journal of Convergence in Technology Review on the Anatomy and Biomechanics of the Foot-Ankle Complex

by Dheeman Bhuyan, Anakshi Das, and Jahnabi Baruah

Download

Static Structural Analysis of Piston Valve of Twin Tube Dampers

Download

3D CAD MODELLING AND COMPUTATIONAL FLUID ANALYSIS OF PISTON VALVE OF TWIN TUBE SHOCK ABSORBERS

Download

Computational Fluid Flow Analysis of Base Valve for Twin Tube Shock Absorbers

by Dheeman Bhuyan, Kaushik Kumar, and K Kumar

Download

Design and Analysis of Base Valve of Twin Tube Dampers

Download

Design of Prosthetic Heart Valve and Application of Additive Manufacturing

Heart valve prostheses are well known and can be classified in two major types or categories: bio... more Heart valve prostheses are well known and can be classified in two major types or categories: biological and mechanical. Biological valves (i.e., Homografts and Heterografts) make use of animal tissue as the valving mechanism whereas mechanical valves make use of balls, disks, and other mechanical valving mechanism. Mechanical valves carry considerable risk and require lifelong medication. The design of these valves is usually done on a "one size fits all" basis, with only the diameter changing depending on the model being produced. The author seeks to present an application of additive manufacturing in the design process for mechanical valves. This is expected to provide patients with customized prostheses to match their physiology and reduce the risk associated with the implantation.

Chapter 5 Design of a Prosthetic Ankle Complex: A Study in Biomimetic System Design

Nature has, over a large span of geological time, engineered near perfect solutions to most probl... more Nature has, over a large span of geological time, engineered near perfect solutions to most problems humans face today. Motion of the limbs is one such area, and the cutting edge in the development of effective prostheses is biomimetics. Limb prostheses have been used by mankind for the better part of known history, and most of the technology currently available in prosthetics is not exclusively new. However, modern prosthetics either are uncomfortable-and the lack of flexion affects the gait of the patient-or too expensive for a large segment of the populace. This chapter seeks to study the mimicry of physiological systems through the design for an ankle prosthesis that includes a passive damper and mimics the shape and behavior of the natural ankle joint.

A Brief History of Prosthetics and Orthotics of the Lower Body and Their Types20190526 72374 ms8gro

Download

Designing of a Twin Tube Shock Absorber: A Study in Reverse Engineering

IGI Global, 2018

Reverse engineering has become the one of the most relevant concepts in modern design doctrines. ... more Reverse engineering has become the one of the most relevant concepts in modern design doctrines.
Advances in technology demand shorter lead time in the overall product development stage, especially
in the automobile sector. Hence as a study in reverse engineering, the author has reverse engineered a
twin tube shock absorber. The process involved the obtaining of subassemblies of the damper mechanism
to generate a 3D CAD model of the damper in PTC CREO 2.0. The model was used to conduct static
structural and CFD analysis of the same using ANSYS 15.0 Workbench. The data obtained was used
as the datum for the design modifications and performance enhancement of the part. It was seen that
the design of the piston valve was optimum hence modifications to the base valve were done. Following
the generation of the datum, similar analyses were conducted on the modified assemblies. The results
were compared to the datum for the selection of the most appropriate design. Four designs are analyzed
and compared with the datum and the set with four orifices in the valve disk was found to be optimum.

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