Transactions of Materials and Heat Treatment

Title：Principle and method in reinforcing dynamic stiffness of high-speed precision press

Authors： ZHEN Zhi-qiang(Xuzhou Metal-forming Machine Group Company Xuzhou 221116 China)

Unit：

KeyWords： high-speed press dynamic stiffness vibration damping nature frequency

ClassificationCode：TG305

year,vol(issue):pagenumber：2008,33(5):144-146

Abstract：

Adopting the modeling experiments to measure the damping ratio and natural frequency of several typical press frames,the regularities from the intrinsic structure of the press were explored,and the intrinsic relations about the dynamic stiffness with damping ratio,natural frequency and loading frequency were studied.It elucidates that sometimes the dynamic stiffness is incompatible with the static stiffness in high-speed situation,and the over-strong static stiffness will damage its dynamic stiffness.On the premise of adequate intensity and static stiffness,the designers should increase the structural flexibility and the internal friction properly,which used to change the damping and the nature frequency of the frame and reinforce the dynamic stiffness of the high-speed precision press.

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Reference：

[1]徐伟力,鲍平,艾健,等.钢板刚度特性的影响因素[J].锻压技术,2006,31(6):33-36.
[2]倪洪启,刘相华,王国栋.超级钢板材冲压性能的试验研究[J].锻压技术,2006,31(3):23-25.
[3]《中国机械设计大典》编委会.中国机械设计大典[M].北京:机械工业出版社,2006.
[4]王铎,程靳.理论力学:下册[M].6版.北京:高等教育出版社,2002.

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