Award Date

1-1-2001

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Mechanical Engineering

First Committee Member

Douglas D. Reynolds

Number of Pages

193

Abstract

A test fixture has been designed for the testing of hand held pneumatic impact tools. The test fixture was modeled after a one-degree of freedom mass-spring-damper system. The design of the test fixture allows for a broad range of testing scenarios intended to simulate the methods in which impact tools are used in industry. Sustained use and assembly operations performed by impact tools were simulated on the test fixture. Acceleration measurements at the impact tool's handle and on the test fixture's mass were recorded during the simulations. From the measurements made on the test fixture's mass, the acceleration levels at the tool's working surface were calculated using a force balance model of the impact tool and the test fixture. From the acceleration measurements made at the impact tool's handle, vibration exposure levels were calculated for four and eight hour exposure time periods. Test procedures and methods incorporating the use of the test fixture are discussed. Results obtained during the testing process are provided.

Keywords

Characteristics; Evaluating; Fixture; Hand; Held; Impact; Methodologies; Pneumatic; Tools; Vibrations

Controlled Subject

Mechanical engineering; Automobiles--Design and construction

File Format

pdf

File Size

5089.28 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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