Award Date

1-1-2008

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Mechanical Engineering

First Committee Member

Mohamed B. Trabia

Second Committee Member

Brendan J. O'Toole

Number of Pages

93

Abstract

Electronic components inside a projectile are subjected to high acceleration during launch. Failure of these components, affects the performance of the projectile. The objective of the research is to better understand how shocks are transmitted to electronic boards and to investigate ways to mitigate these shocks. A projectile model is created to mimic an actual projectile. As projectiles are usually composed of threaded components, the effect of the tightening preload torque on accelerations and frequencies of components on boards is discussed. Experimental results show that increasing the tightening preload torque can ensure that projectile behaves as a single body, which makes acceleration of a component on the board independent of tightening torque. Different methods of mounting the board in projectile are considered and ways of mitigating the acceleration on board is also discussed. The research also presents suggestions to duplicate experimental results using finite element methods.

Keywords

Boards; Electronic; Experimental; Investigation; Mitigation; Projectile; Shock

Controlled Subject

Mechanical engineering

File Format

pdf

File Size

3143.68 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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