Sourav Rakshit

Sourav Rakshit
Indian Institute of Technology Madras | IIT Madras · Department of Mechanical Engineering

About

13
Publications
4,256
Reads
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28
Citations
Citations since 2017
12 Research Items
28 Citations
2017201820192020202120222023024681012
2017201820192020202120222023024681012
2017201820192020202120222023024681012
2017201820192020202120222023024681012

Publications

Publications (13)
Article
Pelvic bone is a complex and robust load-bearing skeletal structure in the human body, the evolution of which might have been influenced by mechanical loads of daily activities like walking, upright standing, and running. Since the main function of skeletal bones is to provide rigidity to the body and provide hard surfaces for muscle attachment as...
Article
This work aims to design a prosthesis of the pelvic bone considering the effect of muscle forces using principles of structural topology optimization. The running gait cycle is chosen since it has high active muscle forces and is divided into seven phases. The pelvic prosthesis is designed for individual seven phases with non-design domains. Materi...
Article
Hip bone is a robust and complex skeletal structure in the human body and it bears loads while doing the daily activities such as walking, running, etc., by connecting the leg with the torso. The geometry of the hip bone facilitates upright gait in humans and hence its evolution might have been influenced by the mechanical forces acting on it. Prev...
Chapter
Resonance occurs when the natural frequency of the system matches with the vibrating frequency. It may cause structural instabilities. To avoid this, engineers maximize the first natural frequency of the system. In many applications, the natural frequency is pre-designed. Structural engineers aim to reduce the weight of structures subject to functi...
Conference Paper
In this work, we use structural topology optimization to design the hip bone with multi-load conditions of walking gait cycle. Previous research works on optimal bone design primarily aimed to design the micro-structure of the femur bone using a multi-load approach with global geometry fixed. To the best of authors' knowledge, no optimal design res...
Article
Full-text available
This work presents a topology optimization based approach towards the optimal design of the human hip bone under mechanical loads during walking. The human hip bone is a complex structure that connects the leg with the torso. It transfers body loads from the upper body to the leg during standing, walking , running, and other daily activities during...
Chapter
Shape Optimization is a method to find the optimal shape of a structure by minimizing the objective function i.e, volume and/or compliance under the design and limit constraints. The boundary of the structure is discretized using B-Splines which allows local control and these control points are taken as design variables for the optimization formula...
Conference Paper
Pelvic reconstruction is required to restore the functional activity after an internal hemipelvectomy. The available pelvic prosthesis has several complications and long terms issues (such as stability, dislocations etc.) due to non inclusion of the basic mechanics. In this study, a structural optimization based pelvic design is presented for an ef...
Chapter
Structural topology optimization finds the optimal material distribution in the given domain by optimizing the objective function subject to the loading and boundary constraints. Solid Isotropic Material Penalization (SIMP) method is widely used to solve topology optimization due to its simplicity in implementation but the resulting optimal design...
Conference Paper
Shape Optimization is a method to find the optimal shape of a structure by minimizing the objective func- tion i.e, volume and/or compliance under the design and limit constraints. The boundary of the structure is discretized using B-Splines which allows local control and these control points are taken as design vari- ables for the optimization for...
Poster
Full-text available
Unaided sit-to-stand motion for humans is simulated given human body segment parameters using optimization of a certain criterion. Resulting trajectory is compared with experimental sit-to-stand trajectory.
Conference Paper
Full-text available
Resonance occurs when the natural frequency of the system matches with the vibrating frequency. It may cause structural instabilities. To avoid this, engineers maximize the first natural frequency of the system. In many applications, the natural frequency is pre-designed. Structural engineers aim to reduce the weight of structures subject to functi...
Article
Simultaneous multiple impacts of solid bodies are modeled approximately within rigid body mechanics using impulse momentum relations, friction inequalities, and some kind of restitution model. The common restitution models are Newtonian, Poisson and energetic restitution. Of these, there is so far no satisfactory generalization of Newtonian restitu...

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