Test overview

■ Purpose

To determine the damping characteristics of short steel plates and damping composite beams. (Reference standard JIS G 0602, JIS K 7391)

■ Measuring method

Suspended impact vibration method
The test specimen was suspended by a string and measured by impact vibration with an impulse hammer.

Suspended impact vibration method

Calculation of loss factor (η) for the suspended impact vibration method: Half width method