结果表明，囊式空气弹簧隔振器的动刚度与充气气压基本成线性关系，与振动频率也基本是线性关系。
Experimental and analysis results show that, the dynamic stiffness shows linearity relation with inner gas pressure, and also with the vibration frequency.
通过分析发现，很可能是钢板弹簧存在的非线性动刚度导致了其平顺性不稳定。
It is found that it is possibly because of the nonlinear stiffness of leaf spring leading to the instabiity of ride comfort.
提出了一种含裂纹的杆单元，基于断裂力学的线弹簧模型，导出了相应的动刚度矩阵。
This paper presents a method for analyzing the plastic properties of a grouted rock bolt element.
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