TY - JOUR A2 - Kushari, A AU - Xu, Taibai AU - Gao, Dongju AU - Chen, Yi AU - Zhang, Weiwei AU - Xu, Fei AU - Zhou, Peng PY - 2021 DA - 2021/02/13 TI - Vibration Response of the Crawler Combine Chassis Frame Excited by the Engine SP - 6675003 VL - 2021 AB - There are many problems of vibration and noise in combine working. As the main power source and excitation source of a combine, the working state of an engine directly affects the reliability and stability of the whole harvester. In order to analyze the vibration response characteristics of a chassis frame under engine excitation, the vibration mechanism and theoretical excitation characteristics of an engine vibration source on a crawler combine harvester are analyzed in this paper, and the vibration response of chassis under engine excitation is tested and analyzed. After theoretical derivation, a two-degree-of-freedom dynamic model of an engine and chassis is established. The experimental results show that the up and down vibration generated by the engine is the main vibration source in the Z direction, and the main excitation frequency is the second-order firing frequency. This paper provides a theoretical reference and experimental basis for vibration reduction and noise reduction of combine and vibration characteristics of the chassis frame. SN - 1023-621X UR - https://doi.org/10.1155/2021/6675003 DO - 10.1155/2021/6675003 JF - International Journal of Rotating Machinery PB - Hindawi KW - ER -