| 摘要 |
<p>Subject of the submitted invention is a machine for simulating pounding, which is usually used for simulating noise created by steps, in particularly for the purpose of measuring unwanted noise. Its main advantage is its small weight and reduced level of unwanted external noise. On one side because the energy is stored just like compressed air in the corresponding container and on the other due to the absence of motors which rotate the swivelling pieces via a chain drive or cogwheel drive and adequate gearbox.</p> |
