High damping composite joint for mechanical vibration and acoustic energy dissipation
摘要
A design for a high damping composite joint which dissipates vibrations through the use of air gaps and viscoelastic material minimizing the transfer of vibrations to the metallic coupling. Viscoelastic material is used with adhesive to provide for increased energy dissipation by the joint. As the load increases on the joint, the load transfers from adhesive to the viscoelastic. The viscoelastic begins to take the load of the joint at the point where the adhesive becomes plastic. Acoustic vibrations are then dissipated in the viscoelastic and are prevented from being transferred to the metallic coupling by air gaps provided in the joint. The amount of viscoelastic and adhesive used depends on the anticipated load. Finite element analysis is used to calculate optimal amounts of viscoelastic and adhesive.
申请公布号
US5573344(A)
申请公布日期
1996.11.12
申请号
US19940323948
申请日期
1994.10.17
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人
CRANE, ROGER M.;LOUP, DOUGLAS C.;GILLESPIE, JR., JOHN W.;ANDERSEN, STEPHEN M.;COPPENS, DANIEL D.