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Technical Paper

Design and Analysis of Automotive Steering Sheet Metal Yoke for High Strength and Rigidity Requirement

2019-10-11
2019-28-0122
The increasing demand for light weighting products due to introduction of various standards and norms for controlling CO2 emissions and to meet the customer requirement of low cost with higher strength and rigidity of product in automotive industry, sheet metal manufacturing technique is adopted for automotive steering yoke for light commercial vehicle. Currently forged yokes are used for higher strength requirement, while sheet metal yokes are being used for small tonnage vehicle. The attempt has been made to improve overall strength and rigidity of the yoke produced by sheet metal operation using SAPH 440 steel with 6.5mm thickness for light commercial vehicle segments. The major challenge identified for this development was developing such a high strength and thickness material with consistency of dimension during forming process and meeting the torsional strength requirement of 500 Nm.
Technical Paper

Design and Development of Cooling System for a Formula SAE Race Car

2018-04-03
2018-01-0079
In Formula Student, the vehicle working parameters are quite disparate from that of a commercially designed vehicle. The inability of teams to incorporate the atypical running conditions in their design causes multiple unforeseen issues. One such condition where the teams fail to improvise upon is the cooling system. Due to the high performance requirement of the competition, multiple teams participating face recurring heating problems. Maximum efficiency from a combustion vehicle can only be achieved when the cooling system is designed to handle the increasing power demand. This paper brings forth a detailed study on the intricate design of the cooling system. The problem has been approached using both theoretical and simulation models. Firstly, NTU-ℇ method was used to calculate the overall heat transfer coefficient and the temperature drop through the radiator core.
Technical Paper

Structural Analysis of Electric Vehicle Transmission - Mounts and Casing for Different Materials

2017-07-10
2017-28-1961
The main objective of the study is to design and analyze casing and supports of a transmission system for an electric vehicle. The system comprises of motors as the power source, constant mesh gear box coupled with limited slip differential as the power transmitting source. The space occupied by the transmission system is a foremost constraint in designing the system. The wear and tear in the system is caused by the gear meshing process and transmission error which lead to failure of the transmission system. This internal excitation also produces a dynamic mesh force, which is transmitted to the casing and mounts through shafts and bearings. In order to overcome such issues in a transmission system, a gear box casing, differential mounts and motor mounts have been designed by the use of CAD-modeling software “SOLIDWORKS”. The designs were imported to FEA software “ANSYS” for carrying out static structural analysis.
Technical Paper

Topology Optimization of Landing Gear for Additive Manufacturing

2020-09-25
2020-28-0389
In the pioneering sectors of design and development, industries are looking for computer integrated solutions for product development; especially in aerospace industries where the demands for reduction in the development cycles and prototyping iterations. Generative design and topology optimization are the recent tools for achieving the desired design solutions. Topology optimization aims to find an ideal structural configuration within the given design domain with various constraints, objectives, and boundary conditions. In this study, topology optimization is used as a design tool in the development phase of a component. An efficient methodology is developed based on topology optimization for regeneration of a tertiary components. The topology optimization approach used in this research is divided into three main stages: modelling, optimization and regeneration.
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