The invention discloses a compilation method of a test run load spectrum equivalent to a working load spectrum, and belongs to the technical field of engine reliability evaluation. The implementation method of the invention comprises the following steps of: determining test run large state time by counting engine run time T1 and preset special test run time T2, monitoring an actual working load spectrum of the engine by using a history recorder, and dividing cycles in the load spectrum into three types; the actual working load spectrum is converted into a program spectrum by merging and counting the holding time of each accelerator angle, then the number of starting times, the number of cycles and the accelerator angles within the test time are calculated in proportion, and a test run load spectrum equivalent to the working load spectrum is constructed. According to the invention, the test run load test procedure can be simplified, the test cost is reduced, and the test efficiency is improved. According to the test run load spectrum compiled by the method, the damage rule and the service life of the engine in large-state continuous use can be more accurately predicted, the prediction precision of the repair interval after large-state prolonging of the engine is improved, and the operation safety of the engine is guaranteed.
本发明公开的一种与工作载荷谱等效的试车载荷谱编制方法,属于发动机可靠性评估技术领域。本发明实现方法为:通过统计发动机已运行时间T1和预设专项试车时间T2确定试车大状态时间,利用历程记录仪监测发动机实际工作载荷谱,并将载荷谱中的循环分为三类。通过归并统计各油门角度保持时间,将实际工作载荷谱转换为程序谱,再按比例计算试验时间内的起动次数、各类循环数及油门角度,构建与工作载荷谱等效的试车载荷谱。本发明不仅能够简化试车载荷试验程序,降低试验成本,提高试验效率。根据本发明编制的试车载荷谱能够实现更准确预测发动机大状态持续使用损伤规律及寿命,提高对发动机大状态延长后修理间隔的预测精度,保障发动机运行安全性。
Reliability test run load spectrum compilation method equivalent to working load spectrum
一种与工作载荷谱等效的可靠性试车载荷谱编制方法
2024-09-13
Patent
Electronic Resource
Chinese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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