Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

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.