title: Pulse shaping techniques for a high-g shock tester based on collision principle.
abstract: 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 velocity amplifier. A theoretical and experimental study of pulse shaping techniques is presented. A model was built and theoretical formulae were deduced for the shock peak acceleration and its duration. Then theoretical analysis and some experiments were conducted. The test results verify the validity of theoretical model and show that the shock tester can generate the expected high-g shock pulses by integrated usage of different impact velocities and pulse shapers made from different materials. This is important in practical applications where the items under test can be shown to excite specific resonances at predetermined acceleration levels using the shock tester.
authors: Nanyang Institute of Technology, Henan Nanyang 473004, China.
authors: Zhengyong
authors: Z
authors: Duan
authors: Nanyang Institute of Technology, Henan Nanyang 473004, China.
authors: Chuansheng
authors: C
authors: Tang
authors: Nanyang Institute of Technology, Henan Nanyang 473004, China.
authors: Yang
authors: Y
authors: Li
authors: Nanyang Institute of Technology, Henan Nanyang 473004, China.
authors: Junliang
authors: J
authors: Han
authors: Suzhou Dongling Vibration Test Instrument Co., Ltd, Jiangsu Suzhou 215163, China.
authors: Guoxiong
authors: G
authors: Wu