Study on The Dynamic Characteristics of Vibratory Screen with Rigid-flex Coupling

doi:10.11885/j.issn.16745086.2014.11.11.04

Abstract

Abstract: The key in the new type vibrating screen development is the study of the dynamic characteristics of the vibrating system. It is a new approach to estimating dynamic characteristics and structural strength of the vibration system considering the characteristics of induction motors and the coupling between rigid bodies and flexible bodies. The Lagrange-Max equation was applied to compute the rotation characteristics of the motor rotor first; the main bodies of the vibration screen were then considered as flexible bodies with FEM. By combining the flexible bodies with rigid bodies, we established the rigid-flexible coupling model. Finally, acceleration responses of the system were measured with testing instruments to verify the correctness of the new method. The results proved that the elastic vibration of the structure of the vibrating screen would influence the dynamic characteristics under the effect of vibration force;the rigid-flex coupling method can accurately forecast the dynamics characteristics of vibratory screens considering the inherent properties of the elastic material; therefore, this research method can also be applied to the dynamics study of rotation and other precision machineries.

Key words: vibratory screens, rigid-flex coupling method, dynamics, dynamics stress, finite element method

CLC Number:

TE113.1

FANG Pan, HOU Yongjun, LONG Xiaokang. Study on The Dynamic Characteristics of Vibratory Screen with Rigid-flex Coupling[J]. 西南石油大学学报(自然科学版), 2016, 38(5): 165-172.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.16745086.2014.11.11.04

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2016/V38/I5/165

References

[1] BLEKHMAN I I. Synchronization in science and technology[M]. New York:ASME Press, 1988.
[2] JAMES A, ROBERT L, ROBERT M, et al. Shale shaker[C]. American Association of Drilling Engineers, 1999.
[3] WEN Bangchun, FAN Jian,ZHAO Chunyu, et al. Vibratory synchronization and controlled synchronization in engineering[M]. Beijing:Science Press, 2009:65-78.
[4] FANG Pan, YANG Qiming, HOU Yongjun, et al. Theoretical study on self-synchronization of two homodromy rotors coupled with a pendulum rod in a far-resonant vibration system[J]. Journal of Vibroengineering, 2014, 16(5):2188-2204.
[5] HE Xiaomei, LIU Chusheng. Dynamics and screening characteristics of a vibrating screen with variable elliptical trace[J]. Mining Science and Technology, 2009, 19(4):508-513.
[6] LIU Chusheng, ZHANG Shimin, ZHOU Haipei. Dynamic analysis and simulation of four-axis forced synchronizing banana vibrating screen of variable linear trajectory[J]. Journal of Central South University, 2012(19):1530-1536.
[7] 侯勇俊,杨建忠,李国忠. XRZS-Z型振动筛结构强度有限元分析[J]. 西南石油学院学报, 2003, 25(6):68-71. HOU Yongjun, YANG Jianzhong, LI Guozhong. Finite element analysis of structure strength for XRZS-Z shale shaker[J]. Journal of Southwest Petroleum Institute, 2003, 25(6):68-71.
[8] 侯勇俊. 三振动电机自同步椭圆振动筛的同步理论[J]. 西南石油大学学报, 2007, 29(3):168-172. HOU Yongjun. The synchronism theory of three-motor self-synchronism exciting elliptical motion shaker[J]. Journal of Southwest Petroleum Institute, 2007, 29(3):168-172.
[9] 侯勇俊. 双轴二倍频振动筛的自同步及稳定性[J]. 西南交通大学学报, 2012, 47(1):104-108. HOU Yongjun. Self-synchronization and stability of twotimes frequency shaker excited by bi-shaft[J]. Journal of Southwest Jiao Tong University, 2012, 47(1):104-108.
[10] 朱维兵,徐昌学,高自力. 钻井振动机动态特性研究[J]. 天然气工业, 2006, 26(4):54-56. ZHU Weibing,XU Changxue,GAO Zili. Research on dynamic characteristics of a shale shaker[J]. Natural Gas Industry, 2006, 26(4):54-56.
[11] 李杰,闫楚良,杨方飞. 联合收割机振动筛的动态仿真与参数优化[J]. 吉林大学学报(工学版), 2006, 36(5):702-704. LI Jie, YAN Chuliang, YANG Fangfei. Dynamic simulation and parameter optimization of the combine harvester vibration sieve[J]. Journal of Jilin University (Engineering and Technology Edition), 2006, 36(5):702-704.
[12] 王成军,李耀明,马履中,等. 3自由度混联振动筛设计[J]. 农业机械学报, 2011(增):69-73. WANG Chengjun, LI Yaoming, MA Lvzhong, et al. Design of three degree hybrid vibration screen[J]. Transactions of the Chinese Society for Agricultural Machinery, 2011(S):69-73.
[13] DWIVEDY S K, EBERHARD P. Dynamic analysis of flexible manipulators, a literature review[J]. Mechanism & Machine Theory, 2006, 41(7):749-777.
[14] CHEN Jinbao, NIE Hong. Overloading of landing based on the deformation of the lunar lander[J]. Chinese Journal of Aeronautics, 2008, 21(1):43-47.
[15] 麻震宇,陈广南,张为华. 超空泡航行体双层壳结构动力响应分析[J]. 中南大学学报(自然科学版), 2012, 43(3):870-875. MA Zhenyu, CHEN Guangnan, ZHANG Weihua. Dynamic response analysis of supercavitating double shells[J]. Journal of Central South University (Science and Technology), 2012, 43(3):870-875.
[16] 陆荣信,陈建芳,冯朝,等. 基于柔性步行路径的双足步行机器人步态参数分析[J]. 中南大学学报(自然科学版), 2014, 45(10):3443-3449. LU Rongxin, CHEN Jianfang, FENG Zhao, et al. Gait parameters analysis of biped walking robot based on flexible walking path[J]. Journal of Central South University (Science and Technology), 2014, 45(10):3443-3449.
[17] 李增彬. 基于虚拟样机技术的振动筛动力学分析及优化设计[D]. 太原:太原理工大学, 2010.