MONITORING METHOD AND DEVICE WITH RESPECT TO FAILURE OF TURBINE BLADE FRACTURE AND ROTATING SHAFT BLOCKING IN APU

• Main Authors: DING HUIFENG, CHEN REI, ZHENG FENGLIANG, HUANG LEI, ZHANG HAILONG, GU ZHUPING, WU JIAJU, YUE QIHE
• Format: Patent
• Language: English; Japanese
• Published: 26.02.2015
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; COSMONAUTICS; ENGINE PLANTS IN GENERAL; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; PARACHUTES; PERFORMING OPERATIONS; STEAM ENGINES; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a monitoring method with respect to the failure of turbine vane fracture and rotating shaft blocking.SOLUTION: The invention relates to a monitoring method and device with respect to the failure of turbine blade fracture and rotating shaft blocking in an APU. The monitoring method with respect to the failure of turbine blade fracture and rotating shaft blocking in the APU comprises the steps of: acquiring APU messages at plural time points within a certain time; acquiring operation parameters of the APU according to the APU messages, the operation parameters including at least starting times STA; calculating an average value AVG and a deviation index δ of the starting times STA within the time; and determining according to the deviation index δ whether the circumstance of turbine vane fracture and rotating shaft blocking in the APU is in a stable phase, a degeneration phase or a failure phase. 【課題】タービンブレード断裂及び回転軸ブロッキング故障に対するモニタリング方法を提供する。【解決手段】ＡＰＵのタービンブレード断裂及び回転軸ブロッキング故障に対するモニタリング方法及び装置に関する。ＡＰＵのタービンブレード断裂及び回転軸ブロッキング故障に対するモニタリング方法は、一定時間内の複数の時点においてのＡＰＵメッセージを取得するステップと、前記ＡＰＵメッセージにより、少なくとも起動時間ＳＴＡを含むＡＰＵの運行パラメータを取得するステップと、前記時間内の前記起動時間ＳＴＡの平均値ＡＶＧ及び偏差指数δを算出するステップと、前記偏差指数δにより、前記ＡＰＵのタービンブレード断裂及び回転軸ブロッキングの状況が安定期、退化期、又は故障期にあるのかを判定するステップと、を含む。【選択図】図６