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作 者:杨志荣 王岩[1] 柯贤勇 饶柱石 YANG Zhi-rong;WANG Yan;KE Xian-yong;RAO Zhu-shi(Marine Engineering Institute,Provincial Key Laboratory of Naval Architecture & Ocean Engineering,Jimei University,Xiamen 361021,China;State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Shanghai 200240,China)
机构地区:[1]集美大学轮机工程学院福建省船舶与海洋工程重点实验室,福建厦门361021 [2]上海交通大学机械系统与振动国家重点实验室,上海200240
出 处:《船舶力学》2019年第6期696-705,共10页Journal of Ship Mechanics
基 金:Supported by the Planned Science and Technology Project of Xiamen Municipality(Grant No.3502Z20183033);Research Project of State Key Laboratory of Mechanical System and Vibration(MSV201901);Key Science and Technology Projects of the Ministry of Transport of China(2018-MS2-058)
摘 要:文章提出了一种由屈曲圆板和线性弹簧组成的隔振器,采用解析法和有限元法分别计算分析其屈曲模态,结果表明解析法与有限元法计算结果相吻合,验证了解析法的正确性。此外,通过采用有限元ANSYS软件计算分析其高静低动的刚度特性,验证了隔振器结构设计的合理性。最后,建立了高静低动隔振器的非线性动力学模型,进一步采用谐波平衡法分析其幅频特性,讨论了系统设计参数的影响规律。分析结果表明刚度比与隔振器的类型和非线性程度相关;此外,高静低动隔振器显示出具有典型的Duffing振子的频率跳跃现象。A vibration isolator consisting of circular plate and linear spring with High-Static-Low-Dynamic Stiffness(HSLDS)is introduced.The buckling modes of the circular plate are analyzed by using analytical method and FEM respectively,and the results show that the analysis of analytical method is coincided with FEM analysis.Furthermore,the HSLDS characteristic of the vibration isolator is calculated and verified by using ANSYS software.Finally,a nonlinear mathematical model of HSLDS vibration isolator is developed and its amplitude-frequency characteristic is further analyzed by using the Increment Harmonic Balance(IHB)method,and the influence law of the system parameters on it is analyzed.The analysis results show that the stiffness ratio is a factor related to the type and degree of nonlinearity.Moreover,the HSLDS vibration isolator presents the typical jump phenomenon of the Duffing oscillator of amplitude-frequency characteristic.
分 类 号:TB381[一般工业技术—材料科学与工程] U664.21[交通运输工程—船舶及航道工程]
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