一种加速编辑方法,用于压力信号的复合收割机底盘使用波形变换的压力信号
Shengcao Huang1,2, Zihan Yang1,2, Zhenghe Song1,3
1College of Engineering, China Agricultural University, Beijing 100083, China.
Sensors (Basel, Switzerland)
|July 12, 2025
概括
本研究介绍了一种改进的波形变换方法,用于加速负载频谱编辑. 新方法增强了加速效应,并保持了耐用性测试的信号完整性.
科学领域:
- 工程 工程师 工程师 工程师
- 信号处理 信号处理
- 材料科学 材料科学 材料科学
背景情况:
- 耐久性测试需要准确的负载频谱数据.
- 对于负载频谱加速的传统方法可能是低效的.
- 波段转换为信号分析和操纵提供了潜在的可能性.
研究的目的:
- 开发一种使用波形变换改进的负载频谱加速编辑方法.
- 为了提高加速耐久性测试的效率和准确性.
- 为农业机械的负载频谱发展提供参考资料.
主要方法:
- 信号分解使用波形变换来隔离高频组件.
- 波段组件的分类和再组合用于加速编辑.
- 开发一种基于伪损害梯度的值选择方法,用于损害段的识别.
- 基于信封的损坏识别以提取和连接高损坏段.
- 案例研究使用压力信号从一个收割机底盘.
主要成果:
- 与现有方法相比,拟议的方法提高了7.76%和15.92%的加速度效应.
- 加速信号在统计参数和功率光谱密度方面与原始信号保持一致.
- 优化波形函数的消失时刻减少了4.8%的信号长度.
结论:
- 改进的波形变换方法对于负载频谱加速是有效的.
- 该方法提高了加速效率,同时保持了信号特性.
- 这项研究为农业机械加速耐用性测试提供了宝贵的见解.
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