Calculation method of reliability on combine harvester transmission belt by considering dynamic stress

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Guan, Zhuohuai^1 ; Li, Liang^1 ; Wu, Chongyou^1

Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture, Nanjing

210014, China^1

关键词: Combine harvesters;    Dynamic reliability;    Machine reliability;    Non-linear dynamic equations;    Reliability calculation;    Transmission belt;    Uncertain parameters;    Working environment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012044/pdf
DOI  :  10.1088/1757-899X/207/1/012044

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Transmission belt is one of the most likely to fail parts of combine harvester, which affecting the machine reliability seriously. Dynamic strength occurs along with vibration during the operation and must be taken into account when calculating reliability, especially in harsh working environment like harvesting. However, the existing calculation method of reliability on combine harvester transmission belt didn't take the dynamic strength into account. In this research, a reliability calculation method was proposed based on the dynamic analysis of transmission belt. The nonlinear dynamic equation was built using string and beam model. Through the equation, relationship between belt speed and dynamic stress was deduced. Considering dynamic stress and regarding uncertain parameters as random uncertain parameters, reliability calculation model was built. Finally, an example was presented and the above mentioned dynamic reliability calculation method was simulated to verify the theoretical analysis in this paper and tested by the Monte-Carlo method.