Pulse shaping techniques for a high-g shock tester based on collision principle

Pulse shaping techniques are discussed in this paper for the practicability of a developed high-g shock tester. The tester is based on collision principle where there is a one-level velocityamplifier. Atheoretical and experimental study ofpulse shaping techniques is presented. A model was built andtheoretical formulae were deduced for the shock peakacceleration and its duration. Thentheoreticalanalysis and some experiments were conducted. The test results verify the validity oftheoretical model and show that the shock tester can generate the expected high-g shock pulses by integrated usage of differentimpact velocities and pulse shapers made from differentmaterials. This is important in practical applications where the items under test can be shown to excite specific resonances at predeterminedacceleration levels using the shock tester.

Source: Review of Scientific Instruments - September 19, 2016 Category: Physics Authors: Zhengyong Duan, Chuansheng Tang, Yang Li, Junliang Han and Guoxiong Wu Source Type: research