I have a requirement to test a hydraulic filter assembly 280,000 pressure cycles with pressure from zero (0) to 300 psi and back to zero (0) at a rate of 10 to 25 Hz with a superimpose impulse cycle of zero (0) to 90 psi and back to zero (0) at a rate of 210 Hz. A representative image would look like . Does anyone know of a way to generate this waveform. I need to be able to input a vibration controller and run it "open-loop" to drive the pressure into a bellows assembly to generate this waveform, but I need a function...??? PLEASE HELP!
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