Patent ID: 9645042
Date: 2017-05-09
CPC Classifications: G01M,G01N

Claim:
1. A resonance test machine for vibration strength testing of a test body clamped between a cross member and a vibration head, wherein the vibration head, the test body and the cross member are part of a second sub-oscillatory system which is vibratable in axis x, in which the test body and a resonator, configured to vibrate with a natural frequency between 1000 and 2000 Hz, containing the vibration head, a vibration spring and a vibration body are arranged successively in series along axis x, wherein a first sub-oscillatory system, which is also vibratable in axis x, is present in series to the second sub-oscillatory system and the resonator, wherein the first sub-oscillatory system contains the vibration body, spring elements, a seismic mass and electromagnetic vibration exciters, wherein the vibration spring elastically connecting the vibration head and the vibration body consists of a tube spring and an anchor spring running concentrically through the cylindrical cavity of the tube spring, and wherein the tube spring comes to lie between the vibration head and the vibration body, and the vibration head is elastically clamped to the vibration body by way of the anchor spring.