公开(公告)号：US06591182B1

公开(公告)日：2003-07-08

申请号：US09515261

申请日：2000-02-29

Applicant: Vito N. Cece ,  Christopher M. Henlein ,  Charles L. Abernathy

Inventor： Vito N. Cece ,  Christopher M. Henlein ,  Charles L. Abernathy

IPC: G06F1900

CPC classification number: F02C9/00 ,  F05D2260/80 ,  F05D2270/053 ,  F05D2270/12 ,  F05D2270/309 ,  F05D2270/44 ,  F05D2270/708 ,  G05B23/0278 ,  G05B23/0283 ,  Y10T477/40

Abstract: A decision making process for evaluating performance shifts identified during a diagnostic trend analysis of gas turbine engine data includes first determining whether each performance shift is actionable, and then determining what maintenance action is required for actionable performance shifts. The maintenance action is determined by identifying potential causes of the actionable performance shifts and ranking the identified potential causes in most likely order. A manual is provided for guiding a user through the decision making process. The manual includes a flow chart flow chart setting forth the steps of the decision making process and a number of tables used in the process. The tables include a false data check table having a number of questions designed to determine whether performance shifts can be attributed to a cause not related to an engine condition requiring maintenance, a persistence and magnitude table for indicating whether a performance shift's persistence and magnitude is sufficient to consider taking action on the performance shift, a notification criteria table having a number of questions designed to determine whether the gas turbine engine data indicates that an urgent condition may exist, and traditional and historical pattern match tables that identify potential causes of performance shift.

Abstract translation: 用于评估在燃气涡轮发动机数据的诊断趋势分析期间识别的性能偏差的决策过程包括首先确定每个性能变化是否可操作，然后确定对于可操作的性能变化需要什么维护动作。 维护行动是通过确定可行动性能转移的潜在原因并以最可能的顺序排列所识别的潜在原因来确定的。 提供了一个指导用户通过决策过程的手册。 本手册包括一个流程图流程图，其中列出了决策过程的步骤和该过程中使用的多个表格。 这些表包括假数据检查表，其具有多个问题，其设计用于确定性能偏移是否可归因于与需要维护的引擎条件无关的原因，用于指示性能偏移的持续性和幅度是否足够的持续性和幅度表 考虑对性能转变采取行动，具有设计用于确定燃气涡轮发动机数据是否指示紧急状况可能存在的多个问题的通知标准表以及识别潜在性能变化原因的传统和历史模式匹配表。