摘要
针对蛋品运输多维隔振装置阻尼的设计问题,指出按单自由度隔振系统经典幅频特性图确定阻尼系数不合理,而应按"二阶系统瞬态响应性能指标"理论确定该多维隔振装置的阻尼系数,并进行了相关计算。利用数控车床测定了所用气缸阻尼器的阻尼系数。通过仿真和实验,对比了阻尼比分别为0.100和0.707时的上平台加速度。结果表明,当采用最佳阻尼比0.707确定气缸阻尼器的阻尼系数时,蛋品运输多维隔振装置隔振效果良好。
Damping of a multidimensional vibration isolation device for transporting eggs was discussed.The air cylinder was used as a damper and its coefficient of damping was measured with CNC lathe.The accelerations of up-platform with different coefficients of damping were measured and compared by means of ADAMS simulation and experiments.Studies indicated that it＇s inappropriate to design the damping of the device according to the classic amplitude-frequency chart.It was proposed that the damping should be decided according to performance index of transient response of second order system.The conclusion showed that the multidimensional vibration isolation device for transporting eggs isolates vibration present a favorable effect when the damping ratio of 0.707 is adopted for the coefficient of damping of the air cylinder.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2010年第2期148-150,163,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(50375067)
高等学校博士学科点专项科研基金资助项目(20050299002)
关键词
蛋
运输
多维隔振
阻尼
Egg
Transportation
Multidimensional vibration isolation
Damping
