Confirmation method of airplane structure calendar safety life
A technology of safe life and aircraft structure, applied in special data processing applications, instruments, electrical digital data processing, etc.
Inactive Publication Date: 2015-01-28
AIR FORCE UNIV PLA
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[0005] However, the current calendar life is directly given by the test analysis results, there is no statistical analysis process, that is, there is no concept of "calendar safety life"; in fact, the calendar life of the aircraft structure is a probability value, which obeys the With a certain probability distribution law, the time of corrosion failure of the actual aircraft structure is dispersed
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[0118] The safety life of the aircraft structure calendar of the present invention includes: the safety life of the aircraft structure calendar in a single service environment and the safety life of the aircraft structure calendar in a multi-service environment. Its characteristics are: the calendar safety life of the protection system, the safety life of the structural base calendar, and the structure The first rollover period and the overhaul interval determined by the fatigue safety life are comprehensively considered to determine the first rollover period, overhaul interval and remaining service time of the aircraft structure, and then add them to determine the calendar safety life of the aircraft structure.
[0119] First, introduce the concept of the safe life of the aircraft structure calendar.
[0120] The calendar safety life of the aircraft structure is the calendar use time of the aircraft structure determined in accordance with the safety life design guidelines to comple...
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The invention discloses a confirmation method of airplane structure calendar safety life. The confirmation method of the airplane structure calendar safety life is characterized by including following steps: 1, confirming a first overhaul period; 2, confirming overhaul intervals; 3, confirming repair times; 4, confirming a remaining service period; 5, obtaining the airplane structures calendar safety life by adding the first overhaul period, all the overhaul intervals, the remaining service period and repair time needed by all overhauls. The confirmation method of the airplane structure calendar safety life has the advantages of being used to confirm the safety service life of an airplane structure, of great importance in guaranteeing of use safety of the airplane structure, capable of providing the basis for reasonably formulating an airplane use plan according to the confirmed airplane structure calendar safety life, and of great importance in achievement of the purposes of bringing airplane structure life potential into full play and improving the life management level of the airplane structure.
Description
Technical field [0001] The invention relates to a method for determining the calendar safe life of an aircraft structure, and belongs to the technical field of aircraft structure life determination. Background technique [0002] The life of an aircraft refers to the service life of the aircraft from being put into use to being grounded under normal service conditions. It generally refers to the structural life of the aircraft body. There are two main indicators: one is the fatigue life considering the effect of flight alternating loads. The number of hours or the number of times of ups and downs is characterized; the second is the calendar life considering environmental corrosion, which is characterized by service life. When determining the life of the aircraft structure, whether it is fatigue life or calendar life, it includes the corresponding first rollover period, overhaul interval and total life, and includes the corresponding repair program. In the existing life management...
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IPC IPC(8): G06F19/00
Inventor 何宇廷张腾李晓虹崔荣洪李昌范伍黎明安涛
Owner AIR FORCE UNIV PLA