Award Date
1-1-2005
Degree Type
Thesis
Degree Name
Master of Science (MS)
Department
Mechanical Engineering
First Committee Member
Douglas Reynolds
Number of Pages
89
Abstract
The UNLV CMEST (The Center for Mechanical & Environment Systems Technology) lab and Army Research Labs have undertaken a research project to develop a seat system that will reduce the level of shock introduced into the bottom of a seat when a vehicle trips a land mine. In order to develop the seat system, a test stand was designed using an air cannon to fire a 5 pound steel slug at an impact plate, creating a high acceleration impulse or shock. The shock from the slug impact is redirected from the horizontal plane to the vertical plane through a pinned rocker assembly designed to strike the bottom of the seat; The test stand was designed with the aid of LS-DYNA, a finite element code capable of modeling the deformations and stresses in dynamic systems. Materials used to construct the test stand were simulated in the model to determine if they are able to withstand the impact from the slug. The LS-DYNA model was used to determine possible acceleration levels output by the test stand in different testing configurations. After completing the construction of the stand, the computer models were verified by comparing the simulated results to experimental testing data. Testing was completed in the CMEST lab using a data collection system and high G accelerometers. (Abstract shortened by UMI.).
Keywords
Development; Seat; Shock; Stand; Test
Controlled Subject
Mechanical engineering
File Format
File Size
2242.56 KB
Degree Grantor
University of Nevada, Las Vegas
Language
English
Permissions
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Repository Citation
Ransel, Christopher, "Seat shock test stand development" (2005). UNLV Retrospective Theses & Dissertations. 1904.
http://dx.doi.org/10.25669/r0wk-9sde
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
