基于自适应遗传算法弹簧刚度优化的可调频多维减振平台设计

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Abstract The multidimensional vibration isolation platform designed based on the specific vibration excitation frequency, can’t meet the requirement of vibration isolation for different working place or condition. In order to meet the need of the multidimensional vibration isolation with excitation varying frequently, adjusting the natural frequency by changing the springs has to become necessity. In this paper, the model of the multidimensional vibration platform based on spatial symmetry 3-PRC parallel mechanism was given. The kinematics and dynamics were established by the closed-loop vector method. The adaptive genetic algorithm was adopted to gain the springs stiffness value, satisfying the error requirements with the specific natural frequency, at the same time, the goal of adjusting the natural frequency was achieved, which providing a novel means to design a multidimensional vibration isolation platform working under varying excitation condition.

Key words： Vibration isolation platform Adjusting natural frequency Springs stiffness AGA

Received: 19 January 2016 Published: 28 June 2017

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	LIU Naijun NIU Junchuan

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LIU Naijun NIU Junchuan. Optimum springs stiffness of frequency adjustable multidimensional vibration isolation platform on based on adaptive genetic algorithm[J]. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(13): 161-165.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2017/V36/I13/161

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