Test waveform
Test waveform
(OP)
Hello everybody,
I have to make a shock test, the specification says:
Maximum absolute acceleration 10 g´s
Maximum spectral velocity 1.3 m/s
Maximum relative displacement 20 milimeters
Does anyone know how to generate a test waveform that fullfil this requirements?
Thank you
Regards
I have to make a shock test, the specification says:
Maximum absolute acceleration 10 g´s
Maximum spectral velocity 1.3 m/s
Maximum relative displacement 20 milimeters
Does anyone know how to generate a test waveform that fullfil this requirements?
Thank you
Regards





RE: Test waveform
Fe
RE: Test waveform
RE: Test waveform
I wouldn't be amazed if a half sine displacement with a 20mm amplitude and an appropriate duration worked.
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Test waveform
I have been looking for information and I have find tha it could be the datum for a "tripartite papper" or four coordinate papper, but I don´t know how generate a waveform (excitation) which I can manage to the shaker, and which fulfill the requirements. If it could be a half sine, how could I calculate it?
Regards
RE: Test waveform
You just need to integrate your acceleration waveform once to get velocity, and again to get displacement.
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.