Based on the vibration test and principle analyses, the test system of testing vibration property of spindle bearing is designed.
The vibration test is made on the 25T passenger cars with SW-220K bogies.
Compared with forced vibration tests, the ambient vibration test is more convenient and it has enough accuracy for the small amplitude response characteristics.
Huck rivet transverse vibration test rig is designed and developed to adapt mass coercive spot-check of railway truck.
This paper introduces the blasting vibration test system of groundwork excavation project of sunshine new town in Nanning city.
On the exclusive test table of damper, vibration test is made according to speed and load required by design. And the following curves are made.
Firstly, the situation of excessive dynamic stress during vibration test of environmental stress screening for an air-air missile flight control cabin was introduced.
What's more, when a vibration test was performed in this condition, no loosening occurred, indicating that a self-locking effect is present even if the nut is not fully tightened.
The first-order mode and the first eigenfrequency of the pier can be obtained easily and precisely by the impact vibration test method, from which three indexes such as the chang.
The experiments include modal tests, vibration tests by knocking, shaking table tests by inputting white-noises and seismic waves, and tests of cable forces and vibration frequencies.
Forced vibration tests of the model dam, excited by the initial displacement, measurement have been carried out for several cases.
