Incorporating Response Spectra and Modal Superposition in Analyzing Transient Responses of Structural Systems Subjected to Half-Sine Impact Acceleration Pulses

We derive in this paper close-form solutions for transient structural responses of a damped single degree of freedom structural system subjected to an impact acceleration pulse of a half-sine waveform. Applications of the response spectra to a JEDEC standard drop test board subjected to different JEDEC drop test conditions are demonstrated. An insight is also provided to analyzing transient structural responses of a multiple degrees of freedom structural system led by an identical type of impact acceleration pulses through modal superposition.