The Generalized Dynamic Factor of Hydraulic Excavator Working Device

Abstract:

Synchronous test platforms were built to test the dynamic stress and working device attitude. The dynamic stress spectrums of all the test points under a variety of common conditions were obtained. The digging gestures corresponding to the peak of the dynamic stress spectrums were found out and taken as the specified digging gestures for the calculation of the static stress. The static stress nephogram of working device under the specified digging gestures was calculated using traditional static strength analysis. By conducting statistical analysis on the ratio of dynamic stress and static stress of all the testing points. Then, the range of generalized dynamic factor of working device was obtained.

• Periodical: Applied Mechanics and Materials (Volume 757)
• Pages: 75-80
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.757.75
• Online since: April 2015
• Authors: Zhi Gui Ren*, Jin Chen, Xiao Ping Pang, Dong Sheng Zhang
• Keywords: Generalized Dynamic Factor, Hydraulic Excavator, Strength Analysis, Stress

References

[1] Srdan M. Bošnjak, Zoran D. Petkovic, Ivana D. Atanasovska, Goran Z. Milojevic, Vaso M. Mihajlovic, Bucket chain excavator: Failure analysis and redesign of the counterweight boom supporting truss columns, Engineering Failure Analysis, 32 (2013).

DOI: 10.1016/j.engfailanal.2013.04.012

[2] Tinh Quoc Bui, Chuanzeng Zhang, Analysis of generalized dynamic intensity factors of cracked magnetoelectroelastic solids by X-FEM, Finite Elements in Analysis and Design, 69 (2013) 19-36.

DOI: 10.1016/j.finel.2013.02.001

[3] Demeke B. A., Tommy H. T. C., Ling Yu, Evaluation of dynamic loads on a skew box girder continuous bridge part Ⅱ: parametric study and dynamic load factor, Engineering structures, 29 (2007) 1064-1073.

DOI: 10.1016/j.engstruct.2006.07.013

[4] Damian B. Dynamic amplification factors of corrugated steel plate culverts, Engineering structures, 46 (2013) 193-204.

DOI: 10.1016/j.engstruct.2012.07.034

[5] Xia Huang. Analysis for the dynamic load factor of the gear transmission with high-speed and heavy-load, Congqing: Chongqing University (2005).

[6] YuanDong Mu, NianLi Lu. Lifting dynamic coefficient an analysis for horizontal jib tower crane, Construction Machinery, 1 (2004) 83-85.

[7] Wei Yang, QingYing Qiu, JianJun Hu. Experimental study of dynamic stress of the hydraulic excavator working device, Construction Machinery and Equipment, 11 (2004) 15-19.

[8] Luigi Solazzi, Design of aluminium boom and arm for an excavator, Journal of Terramechanics, 47 (2010) 201-207.

DOI: 10.1016/j.jterra.2010.03.002

[9] Guojun Chen, Hydraulic Excavator, WuHan：Huazhong University of Science and Technology Press, (2011) 137-158.