Shock Optimization in a Military Vehicle with Internal Space Frame

Authors

Jagadeep Thota, University of Nevada, Las VegasFollow
Mohamed Trabia, University of Nevada, Las VegasFollow
Brendan O'Toole, University of Nevada, Las VegasFollow

Document Type

Conference Proceeding

Publication Date

11-13-2010

Publication Title

ASME International Mechanical Engineering Congress and Exposition

Publisher

ASME

Volume

13

First page number:

531

Last page number:

540

Abstract

Space frames are usually used to enhance structural strength of the vehicle while reducing its overall mass. These frames are comprised of beams that are joined together. Recently, space frames are being incorporated in military vehicles. Space frames in military vehicles are however subjected to different types of loading than what is encountered in civilian vehicles such as projectile impacts and land mine blasts. Due to the need to replace a damaged section of the space frame quickly, the proposed space frame is composed of hollow square cross-section bars and angle sections that are bolted together. The space frame is enclosed by uniform-thickness armor, except at the turret. The vehicle is subjected to high impact load to simulate a projectile hit. The objective of this work is to minimize shocks at various critical locations of the space frame while maintaining the overall structural integrity of the vehicle. The vehicle model is parameterized to achieve this objective. This problem is solved using the Successive Heuristic Quadratic Approximation (SHQA) technique, which combines successive quadratic approximation with an adaptive random search within varying search space. The entire optimization process is carried out within MATLAB environment.

Keywords

Automobiles – Chassis; Damping (Mechanics); Impact; Joints (Engineering); Military vehicles; Optimization; Shock (Mechanics); Space frame structures; Vehicles; Military

Disciplines

Applied Mechanics | Mechanical Engineering | Transportation

Language

English

Comments

Conference proceeding: ASME 2009 International Mechanical Engineering Congress and Exposition, Lake Buena Vista, Florida, USA, November 13–19, 2009

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

Repository Citation

Thota, J., Trabia, M., O'Toole, B. (2010). Shock Optimization in a Military Vehicle with Internal Space Frame. ASME International Mechanical Engineering Congress and Exposition, 13 531-540. ASME.