Temperature measurement testing apparatus of aircraft tail cover
A technology of a test device and a tail cover, which is applied to the field of temperature measurement test devices for aircraft tail cover, can solve problems such as inaccurate temperature fields, achieve good engineering applicability, reduce development risks, and solve problems of inaccurate numerical simulation analysis results. Effect
Active Publication Date: 2016-04-20
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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[0003] The purpose of this invention is to provide a kind of aircraft tail cover temperature measurement test device, can carry out actual measurement to the temperature field of tail structure, to solve the problem that the temperature field obtained by the current calculation method is inaccurate
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[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...
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The invention relates to the aircraft strength testing field, especially to a temperature measurement testing apparatus of an aircraft tail cover. With the apparatus, a problem that that temperature field obtained by the existing calculation method is not accurate can be solved. The testing apparatus comprises a lifting platform, a portal frame, an engine, a simulated testing piece, and a plurality of thermocouples. To be specific, the lifting platform is fixed on a horizontal mounting surface. The portal frame is fixedly arranged on the lifting platform. The engine is fixedly installed on the portal frame and is used for being controlled to simulate various designated working states during a practical aircraft flight process. The simulated testing piece is used for simulating a real aircraft tail structure and is fixedly arranged on the portal frame and is located at a predetermined position of the tail of the engine. The multiple thermocouples are uniformly distributed at the external surface of the simulated testing piece and are used for collecting temperature data of the external surface of the simulated testing piece in real time. According to the testing apparatus, an accurate temperature distribution situation can be obtained by testing, so that a problem of an inaccurate numerical value simulation analysis result can be solved and the aircraft research and development risk can be reduced. The apparatus has the high engineering applicability.
Description
technical field [0001] The invention relates to the field of aircraft strength tests, in particular to an aircraft tail cover temperature measurement test device. Background technique [0002] At present, the binary nozzles of some engines are hidden in the rear fuselage structure, which is one of the key design points to achieve the goal of stealth. The gas emitted by the engine has a high temperature and a fast flow rate, and the body structure behind the engine nozzle must ensure the carrying capacity under the coupling effect of the temperature field and the pressure field. However, in order to meet the stealth requirements, the shape of the tail is often very complex; therefore, it is difficult to obtain its real temperature field only through the current theoretical calculation method. Contents of the invention [0003] The object of the present invention is to provide an aircraft tail cover temperature measurement test device, which can actually measure the tempera...
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IPC IPC(8): G01K7/02
Inventor 刘璟琳何刚吴德锋王刚
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA