Simulation of displacement sensitive non-linear dampers via integral formulation of damping force characterization
Simulation of displacement sensitive non-linear dampers via integral formulation of damping force characterization
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DOI：
10.1006/jsvi.1995.0504
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发表时间：
1995-10
影响因子：
4.7
通讯作者：
M. Haque;A. Ahmed;S. Sankar
中科院分区：
文献类型：
--
作者：
M. Haque;A. Ahmed;S. Sankar
提出了一种表征位移敏感非线性阻尼力的积分公式法。该方法将阻尼器的位移灵敏度特性转化为速度灵敏度特性，然后利用积分公式得到整个速度范围内的阻尼力。利用所提出的公式计算了带位移敏感非线性阻尼器的单自由度隔振器的响应特性。基于能量相似性的局部等效线性化技术，以及直接积分被用来获得仿真结果。传递力的时间历程以及系统的传递率进行了比较，与以往的研究采用传统的非积分方法的阻尼力制定。仿真结果也与现有的实验结果进行了比较，以证明所提出的方法的有效性。结果表明，对于位移相关阻尼器，阻尼力估计使用积分公式是正确和准确的方法进行仿真。
An integral formulation approach for the characterization of a displacement sensitive non-linear damping force is proposed. This method is based on the transformation of the displacement sensitivity characteristic of the damper into a velocity sensitivity characteristic, and then using an integral formulation to obtain the damping force over the velocity range. The response characteristics of a single-degree-of-freedom (DOF) isolator with displacement sensitive non-linear damper is obtained using the proposed formulation. A local equivalent linearization technique based on energy similarity, as well as direct integration is used to obtain simulation results. The transmitted force-time history as well as system transmissibility are compared with previous studies employing the traditional non-integral approach for damping force formulation. Simulation results are also compared with available experimental results to demonstrate the effectiveness of the proposed method. It is shown that for displacement dependent dampers, the damper force estimated using an integral formulation is the correct and accurate approach for simulation purposes.