CAJ | 학술논문

为克服滚珠丝杠副动态特性随螺母沿丝杠运动不断变化，导致丝杠振动难以控制问题，提出采用多重调谐质量阻尼器对滚珠丝杠副横向振动进行控制。建立含多重调谐质量阻尼器的滚珠丝杠副在螺母及两端轴承处弹性支撑条件的动力学模型，获得不同螺母运动、受动态工作负载激励时丝杠横向振动频率响应函数。以不同螺母位置丝杠横向振动频率响应函数幅值最大值最小化为优化目标，获得多重调谐质量阻尼器最佳动力参数。仿真计算结果表明，采用多重调谐质量阻尼器进行丝杠横向振动控制，其效果及鲁棒性显著。
위극복곤주사강부동태특성수라모연사강운동불단변화，도치사강진동난이공제문제，제출채용다중조해질량조니기대곤주사강부횡향진동진행공제。건립함다중조해질량조니기적곤주사강부재라모급량단축승처탄성지탱조건적동역학모형，획득불동라모운동、수동태공작부재격려시사강횡향진동빈솔향응함수。이불동라모위치사강횡향진동빈솔향응함수폭치최대치최소화위우화목표，획득다중조해질량조니기최가동력삼수。방진계산결과표명，채용다중조해질량조니기진행사강횡향진동공제，기효과급로봉성현저。
A ball screw system is widely used as a mechanical transmission unit.As the structure of the ball screw is long and narrow,the high speed performance of the screw is affected by its bending vibration.In addition,the resonance frequencies of the screw exist in a big range due to the movement of its nut.To overcome this problem,multi-tuned mass dampers were used to control the bending vibration of the ball screw here.After establishing the dynamic model of the screw with multi-tuned mass dampers,the frequency response function for the bending vibration of the screw was calculated.To control the bending vibration of the screw with the variation of its nut position,a numerical optimization algorithm was used to obtain the optimal design parameters of the multi-tuned dampers.The simulation results showed that the multi-tuned mass dampers have a good performance to control the bending vibration of the screw.