Put forward a new method for long-span bridge buffeting analysis which using quasi-steady aerodynamic stiffness and unsteady aerodynamic damping based directly on wind tunnel test.

Tracked with pneumatic stiffness, transfer equation of external pressure to internal and Helmholtz frequence, frequence-shift characteristics for roof structures with idealized closed wall and with wall having opening, and similarity criterion theory for pneumatic stiffness are discussed, the key action of wall flexibility in theoretical study is considered.

Wind-Induced dynamic response of the membrane structures belongs to fluid-structure coupling interaction, which includes coupling factors-added air-mass and pneumatic stiffness.

Discussion on the Dynamic Stiffness of Wire-EDM Machine;

How to improve structural dynamic stiffness of machine tools;

Application of a single - chip microcomputer to measuring of dynamic stiffness of crane;

Study on vertical dynamic stiffness and damp of running tire;

Effect of pretension on dynamic stiffness of high-speed angular contact ball bearing

The dynamic stiffness of pre-loaded hollow cylindrical roller bearing is analyzed.

Application of dynamic rigidity and dynamic penetration to consolidated foundation test;

Study on the nonlinear dynamic rigidity characteristics of the initiative magnetic bearings

Its dynamic rigidity is lower,last blade stellite alloy was heavily eroded which caused the increasi.