摘 要
随着现代农业对高效、精准作业需求的不断提升，农业机械传动系统的可靠性成为影响农业生产效率和质量的关键因素。本研究旨在通过系统化的分析与设计方法，提升农业机械传动系统的可靠性水平。为此，采用故障模式与影响分析（FMEA）结合可靠性预测模型的方法，对典型农业机械传动系统进行深入分析，并基于分析结果提出优化设计方案。研究中引入了多目标优化算法以平衡系统性能与成本之间的关系，同时开发了一套适用于农业机械传动系统的可靠性评估体系。实验结果表明，优化后的传动系统在关键性能指标上显著提升，故障率降低了约25%，且使用寿命延长了近30%。本研究的主要贡献在于提出了针对农业机械传动系统的可靠性设计框架，为相关领域的工程实践提供了理论支持和技术参考，同时为未来智能化农业机械的设计奠定了基础。
关键词：农业机械传动系统；可靠性设计；故障模式与影响分析；多目标优化算法；使用寿命延长
RELIABILITY DESIGN AND ANALYSIS OF AGRICULTURAL MACHINERY TRANSMISSION SYSTEMS
ABSTRACT
With the increasing demand for efficiency and precision in modern agriculture, the reliability of agricultural machinery transmission systems has become a critical factor affecting the productivity and quality of agricultural production. This study aims to enhance the reliability of agricultural machinery transmission systems through systematic analysis and design methodologies. To achieve this, a combination of Failure Mode and Effects Analysis (FMEA) and reliability prediction models was employed to conduct an in-depth analysis of typical agricultural machinery transmission systems, with optimization design proposals developed based on the analysis results. A multi-ob jective optimization algorithm was introduced to balance the relationship between system performance and cost, while a reliability evaluation system tailored for agricultural machinery transmission systems was also developed. Experimental results demonstrate that the optimized transmission system achieved significant improvements in key performance indicators, with a fault rate reduction of approximately 25% and an extended service life by nearly 30%. The primary contribution of this study lies in proposing a reliability design fr amework specifically for agricultural machinery transmission systems, providing theoretical support and technical references for engineering practices in related fields, and laying the foundation for the future design of intelligent agricultural machinery.
KEY WORDS：Agricultural Machinery Transmission System；Reliability Design；Failure Mode And Effects Analysis；Multi ob jective Optimization Algorithm；Service Life Extension
目 录
摘 要 I
ABSTRACT II
第一章 绪论 1
1.1 农业机械传动系统可靠性研究背景与意义 1
1.2 国内外农业机械传动系统可靠性研究现状 1
第二章 农业机械传动系统可靠性设计基础 2
2.1 可靠性设计的基本理论与原则 2
2.2 农业机械传动系统的设计要求与约束条件 2
2.3 关键零部件的可靠性建模与分析 3
第三章 农业机械传动系统的可靠性评估方法 3
3.1 基于失效模式的可靠性评估框架 3
3.2 数据驱动的可靠性评估技术应用 4
3.3 实验验证与案例分析 4
第四章 农业机械传动系统优化设计与改进策略 4
4.1 传动系统关键参数的优化设计方法 5
4.2 提高可靠性的材料选择与工艺改进 5
4.3 系统冗余设计与故障容错机制 5
结 论 6
参考文献 7
致 谢 8
