A three dimensional approach to model steel wire ropes used in high energy absorber apparatus
A three dimensional approach to model steel wire ropes used in high energy absorber apparatus
复制标题
高能量吸收装置中使用的钢丝绳模型的三维方法
DOI：
10.1016/j.ijsolstr.2014.08.013
复制
发表时间：
2014-12
影响因子：
3.6
通讯作者：
Zhang Song
中科院分区：
文献类型：
--
作者：
Xu Bing;Dong Pengpeng;Zhang Junhui;Zhang Song
钢丝绳的建模方法和动力学特性的研究已有几十年的历史。以往的钢丝绳模型通常是二维的，只适用于平面运动。另外，当钢丝绳用于相对低速的工程应用领域时，不考虑扭结波的传播。与之相比，本文提出了一种用于高能量吸收装置的钢丝绳的三维建模方法。在对钢丝绳进行建模时，考虑了钢丝绳与其他物体的三维接触以及扭折波在钢丝绳中的传播。与钢丝绳的二维模型相比，该模型将钢丝绳视为由6个自由度的圆柱体单元通过空间约束连接而成的多体系统。计算了钢丝绳与物体三维接触时产生的冲击力，并应用弹性波传播理论分析了高速运动物体对钢丝绳突然垂直冲击时扭折波的传播。另外，建立了钢丝绳的数学模型，并对钢丝绳的三维模型进行了数值模拟。通过与实验数据的比较，验证了本文所提出的钢丝绳模型的有效性和正确性。因此，所提出的建模方法可以视为一种新的方法在建模钢丝绳的研究领域。基于这种新的建模方法的钢丝绳的动力学特性的同时，钢丝绳的动力学曲线不仅可以被视为进一步的比较研究的基础，而且可以提供一些有意义的和有趣的结果。
The modeling method and dynamical characteristics of steel wire ropes has been researched for several decades. In the past, steel wire ropes were usually modeled as a two dimensional system, which was only suitable for the planar motion. Also, no kink-wave propagation was considered when steel wire ropes were used in relatively low speed engineering application areas. By contrast, a three dimensional approach to model steel wire ropes used in high energy absorber apparatus is presented in this paper. Three dimensional contacts between steel wire ropes and other objects and kink-wave propagation in steel wire ropes are taken into consideration when applying the new approach to model steel wire ropes. Compared to the two dimensional model of steel wire ropes, the proposed model regards steel wire ropes as a multi-body system consisting of identical cylindrical elements with 6 degrees of freedom connected by space constraints. Impact forces generated by three dimensional contacts between steel wire ropes and other objects are calculated and theories of elastic wave propagation are applied to analyze the kink-wave propagation when steel wire ropes are loaded with a sudden perpendicular impact by a high speed moving object. In addition, mathematical model of steel wire ropes is established and numerical simulation of the three dimensional model of steel wire ropes is implemented. By comparing the simulation results with the experimental data available, the model of steel wire ropes proposed in this paper is demonstrated to be valid and correct. Therefore, the proposed modeling method can be treated as a new approach in the research field of modeling steel wire ropes. The dynamical characteristics of the steel wire ropes based on this new modeling approach are addressed simultaneously and plots of the dynamics of steel wire ropes cannot only be regarded as a basis for the further comparative studies, but also can provide some significant and interesting results.
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影响因子：
4.6
作者：
A. Volkwein;K. Schellenberg;V. Labiouse;F. Agliardi;F. Berger;F. Bourrier;L. Dorren;W. Gerber
通讯作者：
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发表时间：
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