Study on modeling and characteristics of the viscous damper using the throttled fluid mixed with air
HE Xiao-wei1，WU Tian-xing1，WANG Yu-rong1,2
1.State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240 China; 2. Department of Mechanical Engineering, Ning Xia University, Yinchuan 750021 China
Orifice-type viscous dampers exhibit a hysteresis behavior which is explained by additional stiffness. When mixed with air, its efficiency and additional stiffness would change. To study the dynamic characteristics of the damper mixed with air, calculated the nonlinear damping force and stiffness in a series model. A linear model in parallel which was convenient in practical application was established based on equivalent damping and stiffness, then researched on the efficiency and additional stiffness of dampers mixed with air in different frequencies and amplitudes. Experimental results of viscous dampers imply this method and model is correct.
何小伟;吴天行;王誉蓉;. 混有空气的孔隙式粘滞流体阻尼器模型及性能研究 [J]. , 2014, 33(1): 95-100.
HE Xiao-wei;WU Tian-xing;WANG Yu-rong;. Study on modeling and characteristics of the viscous damper using the throttled fluid mixed with air. , 2014, 33(1): 95-100.
2014, Vol. 33 
