AN INVESTIGATION OF RESPONSE CALCULATION OF NON-OBSTRUCTIVE PARTICLE DAMPING BEAM BASED ON THE ENDOCHRONIC THEORY

摘要

Non-Obstructive Particle Damping (NOPD) is a new composite damping technology came from traditional particle damping and impact damping technique. NOPD Structure has a good effect on decreasing sound and vibration. In the paper an incremental form of the endochronic constitutive equation of particles is derived and penalty element is introduced to solve connect problem between structure and particles. On the basis of them response of NOPD structure is calculated. Some tests are done. The tests have a good agreement with calculational results. It proves that the method developed in this paper is an effective method to calculate response of NOPD structure.