Transactions of Materials and Heat Treatment

Title：Dynamic balancing optimization of mechanical high speed

Authors： Hu Wentao Liu Yanxiong

Unit： Wuhan University of Technology Hubei Collaborative Innovation Center for Automotive Components Technology

KeyWords： high speed fine-blanking machine main driving mechanism dynamic balancing optimization shaking force shaking moment vibration

ClassificationCode：TG385

year,vol(issue):pagenumber：2018,43(11):83-88

Abstract：

High speed fine-blanking machine has the development trend of high speed and high precision. However, the unbalanced inertia force of main driving mechanism causes the vibration of the whole machine. Therefore, for 3200 kN mechanical high-speed fine-blanking machine, the computational formula of shaking force and shaking moment were proposed by the kinematics and dynamic statics analysis of the main driving mechanism, and the change rules of shaking force and shaking moment of the main driving mechanism versus time were obtained. Meanwhile, through the dynamic balancing optimization to control the vibration, the maximum values of horizontal shaking force FX and vertical shaking force FY of the whole machine decrease by 18.2% and 1.67% respectively, and the average absolute values of horizontal and vertical shaking forces in one period reduce by 19.74% and 2.59% respectively. In addition, the maximum value of shaking moment M at the origin of the coordinate system droppes by 16.66%,and the average absolute value of shaking moment in one period decreases by 20.01%. Thus, the dynamic balancing optimization reduces the shaking force and shaking moment effectively and inhibites the vibration response.

Funds：

新能源汽车科学与关键技术学科创新引智基地资助（B17034）；中央高校基本科研业务费专项资金资助(2018Ⅲ003CG)

胡文涛（1994-），男，硕士研究生,E-mail：wentaohu.whut@qq.com;通讯作者：刘艳雄（1985-），男，博士，副教授,E-mail：liuyx@whut.edu.cn

Reference：

[1]华林，胡亚明，宋燕利，等. 精冲技术与装备[M]. 武汉：武汉理工大学出版社，2015.

Hua L，Hu Y M， Song Y L，et al. Fine Blanking Technology and Equipment[M]. Wuhan: Wuhan University of Technology Press，2015．

[2]Esat I, Bahai H. Theory of complete force and moment balancing of planer linkage mechanisms[J]. Mechanism & Machine Theory, 1999, 34(6):903-922.

[3]Chiou S T, Bai G J, Chang W K. Optimum balancing designs of the drag-link drive of mechanical presses for precision cutting[J]. International Journal of Machine Tools & Manufacture, 1998, 38(3):131-141.

[4]Zhang S, Chen J. The optimum balance of shaking force and shaking moment of linkage[J]. Mechanism & Machine Theory, 1995, 30 (4):589-597.

[5]Chaudhary K, Chaudhary H. Optimal dynamic balancing and shape synthesis of links in planar mechanisms[J]. Mechanism & Machine Theory, 2015,93 (11):127-146.

[6]曾梁彬, 孙宇, 彭斌彬. 基于动态响应的高速压力机综合平衡优化[J]. 中国机械工程,2010, 21(18):2143-2148.

Zeng L B, Sun Y, Peng B B. Synthetic dynamic balance optimization of high speed punch based on dynamic response[J]. China Mechanical Engineering, 2010, 21(18):2143-2148.

[7]李烨健, 孙宇, 胡峰峰,等. 高速机械压力机综合动平衡优化研究[J]. 华中科技大学学报:自然科学版, 2016, 44(6):24-28.

Li Y J, Sun Y, Hu F F, et al. Research on synthetic optimum dynamic balancing of high-speed press machine[J]. Huazhong Univ. of Sci. & Tech.:Natural Science Edition, 2016, 44(6):24-28.

[8]程涛，刘艳雄，华林. 超声波振动辅助精冲成形工艺研究[J]. 锻压技术，2016, 41(4): 25-35.

Cheng T, Liu Y X, Hua L. Research on the technology of ultrasonic vibration assisted fine blanking process[J]. Forging & Stamping Technology, 2016, 41(4):25-35.

[9]Farmani M R, Jaamialahmadi A, Babaie M. Multiobjective optimization for force and moment balance of a four-bar linkage using evolutionary algorithms[J]. Journal of Mechanical Science & Technology, 2011,25(12): 2971-2977.

Service：

【This site has not yet opened Download Service】【Add Favorite】