Waveform Synthesis for Shock Response Spectrum Replication, Applied to Ground Vehicle Component Testing

Improved test methods will help alleviate the impact of shock levels on military and commercial ground vehicle components.

Combat Capabilities Development Command, Warren, Michigan

The motivation for this work is to mitigate shock levels on vehicle components, through testing new designs of equipment. The objective is to generate a time history to perform shock testing on military and commercial ground vehicle components. The time histories are used to drive hydraulic actuators coupled to a test specimen.

The Military Standard 810g Method 516.7 (MIL-STD) prescribes actual event data as the first choice. However, that is usually not an option as most components haven't been tested in actual shock events. Therefore, the second procedure called out in the MIL-STD is the best choice for the lab. That second procedure is Shock Response Spectrum (SRS) based testing, which was the focus of this research. The SRS was used to generate the time history.