[A study for time-history waveform synthesis of algorithm in shock response spectrum (SRS)].
Objective. To present an effective on-line SRS time-history waveform synthesis method for simulating pyrotechnic shock environment with electrodynamic shakers. Method. A procedure was developed for synthesizing a SRS time-history waveform according to a general principle. The effect of three main parameters to waveform's shape, amplitude of acceleration and duration were investigated. A modification method of SRS's amplitude and an optimal algorithm of time-history waveform were presented. Result. The algorithm was used to generate a time-history waveform that could satisfy SRS's accuracy requirement and electrodynamic shaker's acceleration limitation. Conclusion. The numerical example indicates that the developed method is effective. The synthesized time-history waveform can be used to simulate pyrotechnic shock environment using electrodynamic shakers.
Liu
Hong-ying
HY
Institute of Space Medico-Engineering, Beijing, China.
Ma
Ai-jun
AJ
D000054:Acceleration; D000465:Algorithms; D003198:Computer Simulation; D019563:Mechanics; D008962:Models, Theoretical; D009038:Motion; D014732:Vibration