Fault detection of low speed planetary gearboxes

行星齿轮箱广泛应用于加拿大的油砂工业。它们也用于直升机、重型卡车和其他大型机械。行星齿轮箱的计划外中断会造成重大的经济后果。行星齿轮箱健康状况的在线评估将为这些行业节省大量成本。该项目代表了阿尔伯塔大学和辛克鲁德研究中心之间的合作研究成果。它的目标是开发检测行星齿轮箱关键部件可能出现的早期故障的方法。将建立行星齿轮箱试验台。变速箱的牺牲部件将被加工成模拟现场操作中常见的损坏模式。从试验台收集的数据和信号可能包括输出扭矩、转速、轴承温度、声学信号和多轴振动信号。收集到的数据将用统计方法和先进的信号处理技术进行分析。将构建模型来反映所收集的数据和从数据中提取的某些参数与损伤状态之间的关系。该项目的研究成果将用于行星齿轮箱的在线运行和维护，以防止意外故障的发生。它们将使使用行星齿轮箱的公司受益，从而使加拿大经济受益。它们还将丰富世界上关于齿轮箱的知识基础。将为加拿大工业培养高素质人才。

Planetary gearboxes are widely used in Canada's oil sands industry. They are also used in helicopters, heavy-duty trucks, and other large-scale machinery. Unscheduled outages of planetary gearboxes have major economic consequences. On-line assessment of the health condition of planetary gearboxes will generate significant cost savings for these industries.This project represents a collaborative research effort between the University of Alberta and Syncrude Research Centre. Its objective is to develop methods for detection of early faults that may develop in key components of planetary gearboxes. A planetary gearbox test rig will be set up. Sacrificial components of the gearbox will be machined to mimic common damage modes experienced in field operations. Data and signals to be collected from the test rig may include output torque, rotational speed, bearing temperature, acoustic signals, and multi-axis vibration signals. The collected data will be analyzed with statistical methods and advanced signal processing techniques. Models will be constructed to reflect the relationship between the damage status and the collected data and certain parameters extracted from the data.The results to be developed from this project will be used in on-line condition based operation and maintenance of planetary gearboxes to prevent unexpected breakdowns. They will benefit companies using planetary gearboxes and as a result the Canadian economy. They will also enrich the world knowledge base on gearboxes. Highly qualified personnel will be trained for the Canadian industry.