Computers under drop and shake Ü
Computers under Violent Shake and Drop
Shock wave propagates through ground or air and impinges on buildings, which will experience a short-duration, high intensity acceleration shock. This shock will in turn causes the equipment and instruments inside the building to experience sudden pulse of acceleration. This is because the equipment and instruments are general mounted on the floors and the walls. Under the high intensity short duration shock, equipment and instruments can fail internally with delicate parts damaged at high acceleration. This will have a deadly effect if the equipment and instruments are critical components. It is imperative to determine a) the characteristics of the shock, b) the tolerance level of various equipment to the shock loading, and consequently design ways to reduce the shock level on the equipment through shock absorbers and/or increase the shock tolerance of the equipment.
The project proposes to develop a methodology to simulate the above mentioned instruments and equipment under shock loading. Both laboratory testing and numerical simulation will be carried out. The methodology enables equipment to be tested under simulated laboratory condition to determine the shock tolerance. Existing shock absorbers will be evaluated and recommendation will be given as to the types of shock absorbers that should be employed.
Shock test will be conducted for the equipment on the existing vibration table to simulate ground movement and drop tester to simulate the vertical drop. Numerical simulation of these tests will be performed on ANSYS/DYNA3D software. Combining these two, a methodology will be developed so the shock condition can be simulated.