Informatics Publishing Limited

G. Janardhana Raju ¹, K. Srinivasulu Reddy ², N. Venkatachalapathi ³

Affiliations
1 Mech. Engg. Dept., Nalla Narasimha Reddy Group of Institutions, Hyderabad, IN
2 Mech. Engg. Dept., Sreenidhi Institute of Science and Technology, Hyderabad, IN
3 Mech. Engg. Dept., Velammal Engineering College, Chennai, IN

Abstract

This paper presents the design evolution of drive booster configuration for terrain vehicle to manoeuvre over the roads covered with mud or snow. The proposed design of booster consisted small number of parts whose sizing is accomplished through design calculations. The intended system will take power from engine to do so but in petite proportion. The booster increases the moment of inertia through increment in angular speed of terrain vehicle. Structural design adequacy is assessed using ANSYS commercial finite element analysis software. Available safety margin is extracted through static analysis. The severance of first natural frequency of the intended booster system is ascertained from that of engine by carrying out modal analysis.

Keywords

Terrain Vehicle, Structural Design, Drive Booster, Static Analysis, Modal Analysis.

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K. Srinivasulu Reddy ¹, G. Ranga Janardhana ², Kim S. Kun ³

Affiliations
1 JNT University, Hyderabad, IN
2 Hoseo University, Asan City, KR
3 Dept. of Automobile Engg., Hoseo University, Asan City, KR

Abstract

The effects of modification and vibration during solidification of Aluminum-Silicon eutectic alloy (LM6) are studied and compared with unmodified alloy. Sodium and Strontium are used as modifiers. Horizontal sinusoidal vibration at different frequencies was imposed using a vibration table. It was found that modification treatment improves properties such as ultimate tensile strength (UTS), percentage elongation, hardness, toughness, cutting force, electrical conductivity, thermal conductivity and optimum values were obtained at 1.5% by weight addition of modifier. Vibration imposed during solidification on the modified alloy further improved the properties at 15 Hz frequency of vibration. Neuro fuzzy model was developed to predict the properties at different percentages of modifiers and different frequencies of vibration. From the studies of sensitivity analysis, it was found that UTS is more sensitive to % modifier and thermal conductivity is more sensitive to frequency of vibration. Similar models were also developed to predict porosity and fatigue strength. The developed models are validated experimentally.

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