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Effect of crack on dynamic characteristics of corn combine harvester frame
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: 2018 ASABE Annual International Meeting 1801087.(doi:10.13031/aim.201801087)
Authors: Xueyan Zhao, Jun Fu, Chao Cao, Dehao Wu, Yanchun Yao, Zhenghe Song
Keywords: Corn combine harvester frame, crack, natural frequency.
Abstract. Crack is a common damage in corn combine harvester frame and has significant impact on dynamic characteristics of the system. In this study, effect of crack on dynamic characteristics of corn combine harvester frame is studied. Reasons of crack occurrence in corn combine harvester frame are investigated firstly. Then the model of corn combine harvester frame with crack damage is established by finite element (FE) method. Finally, effect of crack location and crack depth on dynamic characteristics of corn combine harvester frame is studied by comparison with the case when no crack occurs. Results of simulation studies conclude that crack with different location and depth will change natural frequencies differently. This conclusion provides a good reference for corn combine harvester structure performance optimization, damage detection and localization, and maintenance.
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