CuPID Survives Vibration Testing!

April 6th, 2021

Last week, CuPID underwent vibration testing as part of its environmental test requirements from the launch provider. CuPID survived the extreme vibrations we gave it, and showed nominal operation after the test.

CuPID mounted to the shaker system to test the Y axis response. C. O’Brien and E. Atz observe.

Accelerometers are mounted to the vibration plate to define the driving forces, as well as specific location on CuPID to characterize CuPID’s response. CuPID was tested three times in each axis, a total of 9 vibration tests. The tests include a sine sweep, random vibe, and a second sine sweep.

  1. A sinusoidal frequency “sweep” is used to find CuPID’s natural frequencies (Natural frequencies are where a system has a large response, such as when your car shakes at a specific speed on the highway, or when the washing machine vibrates excessively when the wet laundry is un-balanced inside.)
  2. A random vibration, lasting 1 minute, spanning frequencies from 20Hz to 2000Hz at various amplitudes, proves CuPID’s robustness to extreme forcing.

CuPID mounted on vibration table undergoing Z axis vibe. B. Walsh and C. O’Brien observe from afar.