为了研究球形钢丝绳隔振器的力学性能，本文提出一种新的建模和仿真方法，通过实验和仿真结果的对比验证仿真方法的有效性。将6×19+IWS的钢丝绳结构简化为6×1+IWS结构，由钢丝绳拉伸实验获得芯股和侧股的实际弹性模量，用Abaqus/Explicit算法模拟球形钢丝绳隔振器的准静态压缩过程。通过对球形钢丝绳隔振器进行仿真研究，得到与实验一致的力学特性。随着球形钢丝绳隔振器压缩时位移逐渐增加，其刚度逐渐降低，仿真与实验结果误差在9%以内，验证了仿真方法的有效性，为进一步研究结构参数对球形钢丝绳隔振器力学性能的影响提供参考。
In order to study the mechanical properties of Spherical wire rope isolator, the paper presents a new modeling and simulation method, The effectiveness of the simulation method is verified by comparison of experiments and simulation results.Simplifying the 6×19+IWS wire rope to a 6×1+IWS structure, the actual elastic modulus of the core strand and the side strands were obtained from the wire rope tensile test, simulating the quasi-static compression process of the wire rope isolator with the Abaqus/Explicit. Through the finite element analysis of the wire rope and the wire rope isolator, the mechanical properties consistent with the experiment were obtained. As the wire rope isolator compresses, the displacement gradually increases, its stiffness gradually decreases, The wire rope isolator experiment and the simulated force-displacement curve agree well, and the simulation and experimental results are within 9%, which verifies the simulation method. The validity of this paper provides a reference for further study of the influence of structural parameters on the mechanical properties of wire rope isolator.
2021,43(6): 74-78 收稿日期：2020-12-02
DOI：10.3404/j.issn.1672-7649.2021.06.014
分类号：TU112.59+7
作者简介：卢凯田(1993-)，硕士，研究方向为舰船设备冲击与防护
参考文献：
[1] 龚宪生, 骆意, 王红霞. 钢丝绳隔振器弹性元件空间曲线模型分析[J]. 重庆大学学报, 2014, 37(2): 7–13+21
[2] 曹晓政, 姜文涛, 李倩, 等. 车载电子设备隔振的随机振动分析[J]. 云南电力技术, 2018, 46(6): 68–71
[3] 刘广璞, 王福明, 樊文欣. 钢丝绳隔振器动态特性试验研究[J]. 华北工学院测试技术学报, 1999, 13(3): 180–184
[4] VAIANA, N., SPIZZUOCO, M., &SERINO, G. (2017). Wire rope isolators for seismically base-isolated lightweight structures: Experimental characterization and mathematical modeling[J]. Engineering Structures, 140, 498–514.
[5] 班书昊, 李晓艳, 蒋学东, 等. 钢丝绳隔振器的非线性动力学模型[J]. 力学与实践, 2012, 34(1): 66–69
[6] 万叶青, 范立民, 齐煜. 钢丝绳隔振器非线性特性分析[J]. 振动与冲击, 2007, 26(7)
[7] 王红霞. O型钢丝绳隔振器特性研究[D]. 重庆: 重庆大学, 2015.
[8] 王勇, 黄映云. 锤击法测评小型钢丝绳隔振器冲击特性[J]. 船舶工程, 2007, 29(4): 79–81
[9] TAPIA-GONZÁLEZ, P. E., & LEDEZMA-RAMÍREZ, D. F. Experimental characterisation of dry friction isolators for shock and vibration[J]. Journal of Low Frequency Noise, Vibration and Active Control, 2017, 36(1), 83–95.
[10] CEN, B., LU, X., & ZHU, X. Research of numerical simulation method on vertical stiffness of polycal wire rope isolator[J]. Journal of Mechanical Science and Technology, 2018, 32(6), 2541–2549.
[11] TU, S., LU, X., & ZHU, X. Effect of structure parameters on polycal wire rope isolator stiffness-damping characteristics[J]. Shock and Vibration, 2019： 1–10.
[12] ERDONMEZ. C, IMRAK. C. E. A finite element model for independent wire rope core with double helical geometry subjected to axialloads[J]. Sadhana, 2011, 36(6): 995–1008
