单自由度含间隙弹性碰撞振动系统的等效电路仿真OA
Equivalent Circuit Simulation of Single-degree-of-freedom with Gap-elastic Collision
该文建立了一类单自由度含间隙弹性碰撞振动系统的力学模型,采用多参数协同仿真法,分析系统在双参数平面下的周期冲击振动分布规律,采用4阶变步长Runge-Kutta法,实验仿真了简谐激励作用下系统的动力学特性及转迁过程,采用电阻、集成运算放大器等电子元件设计了一类与该机械碰撞系统等效的电子电路,并对不同参数下系统的数值仿真结果进行验证.结果表明:利用等效电路仿真所得结果与数值仿真结果相一致,与数值仿真相比,等效电路仿真能够快速实现动态化的参数调节及不同模态下的转换分析,为非线性动力学的研究提供了一种更加便捷的研究方法.
In this paper,a mechanical model of a single-degree-of-freedom elastic collision vibration system with gap is established,and the distribution law of periodic shock vibration of the system under the two-parameter plane is analyzed by multi-parameter co-simulation,and the dynamic characteristics and transition process of the system under simple harmonic excitation are simulated by using the four-order variable-step Runge-Kutta method.An electronic circuit equivalent to the mechanical collision system is designed by using electronic components such as resistors and integrated operational amplifiers,and the numerical simulation results of the system under different parameters are verified.The results show that the results obtained by equivalent circuit simulation are consistent with the numerical simulation results,and compared with numerical simulation,the equivalent circuit simulation can quickly realize dynamic parameter adjustment and conversion analysis under different modes,which provides a more convenient research method for the study of nonlinear dynamics.
付文斌;朱喜锋;郑冬
兰州交通大学机电工程学院,兰州 730070甘肃省轨道交通装备系统动力学与可靠性重点实验室,兰州 730070兰州交通大学机电工程学院,兰州 730070
信息技术与安全科学
冲击振动模态转换数值计算颤碰运动等效电路
shock vibrationmodal transitionnumerical simulationgap-elastic collisionequivalent circuit
《机械科学与技术》 2026 (1)
27-36,10
甘肃省科技计划(20JR5RA424)
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