方形组合式钢丝绳隔震器变刚度等效动力学模型  

Variable Stiffness Equivalent Dynamic Model of Square Combined Wire Rope Isolator

作　　者：王金叶 邱艳宇 程怡豪 蒋海明 岳松林 WANG Jinye;QIU Yanyu;CHENG Yihao;JIANG Haiming;YUE Songlin(College of National Defense Engineering,Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]陆军工程大学国防工程学院,江苏南京210007

出　　处：《陆军工程大学学报》2025年第2期80-87,共8页Journal of Army Engineering University of PLA

摘　　要：以方形组合式钢丝绳隔震器为研究对象,针对动力响应模型参数识别复杂的问题,在进行静力和冲击隔震试验基础上,建立加载刚度主导的等效动力学模型,比较等效线性模型和变刚度模型的合理性并讨论了主要参数的取值。结果表明,方形组合式钢丝绳隔震器在垂直向和水平向均表现出明显的迟滞特性和刚度非线性,在爆炸冲击作用下隔震率均达89.77%以上,具有良好的隔震性能;在小幅冲击震动下隔震器表现为微小阻尼,而在大幅冲击震动下则表现为大阻尼;以隔震器加载刚度为基础建立的变刚度等效动力学模型可在一定范围内有效描述隔震结构在冲击震动下的动力学行为。Taking a square combined wire rope isolator as the research object,this study addresses the complexity of parameter identification in the dynamic response model.Based on static and shock isolation tests,an equivalent dynamic model dominated by loading stiffness is established.The rationality of equivalent linear models and variable-stiffness models is compared,and the valuation of the major parameters is discussed.The results indicate that the square combined wire rope isolator exhibits significant hysteretic characteristics and stiffness nonlinearity in both vertical and horizontal directions.Under the explosive impact,both the isolation rate exceed 89.77%,demonstrating good isolation performance.The isolator shows negligible damping under small impact vibrations,whereas it exhibits substantial damping under large impact vibrations.The variable-stiffness equivalent dynamic model established based on the loading stiffness of the isolator can effectively describe the dynamic behavior of the isolated structure under shock vibrations within a certain range.

关 键 词：方形组合式钢丝绳隔震器 冲击隔震 加载刚度 变刚度模型 

分 类 号：TB535.1[理学—物理]