Shock and Vibration

Shock and Vibration / 1996 / Article

Review | Open Access

Volume 3 |Article ID 871696 |

Jeffrey A. Gatscher, Grzegorz Kawiecki, "Comparison of Mechanical Impedance Methods for Vibration Simulation", Shock and Vibration, vol. 3, Article ID 871696, 10 pages, 1996.

Comparison of Mechanical Impedance Methods for Vibration Simulation

Received08 May 1995
Accepted12 Dec 1995


The work presented here explored the detrimental consequences that resulted when mechanical impedance effects were not considered in relating vibration test requirements with field measurements. The ways in which these effects can be considered were evaluated, and comparison of three impedance methods was accomplished based on a cumulative damage criterion. A test structure was used to simulate an equipment and support foundation system. Detailed finite element analysis was performed to aid in computation of cumulative damage totals. The results indicate that mechanical impedance methods can be effectively used to reproduce the field vibration environment in a laboratory test. The establishment of validated computer models, coupled with laboratory impedance measurements, can eliminate the overtesting problems inherent with constant motion, infinite impedance testing strategies.

Copyright © 1996 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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