Impact load test device and method for aircraft engine supporting structural member
A technology for aircraft engines and supporting structures, which is applied in the testing of machine/structural components, impact testing, measuring devices, etc. It can solve problems such as high performance requirements, complex structures of supporting structural parts, inability to accurately respond to stress conditions and damage states, etc. , to achieve the effect of low manufacturing cost and simple structure
Pending Publication Date: 2019-07-16
AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG
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Problems solved by technology
Due to the complex structure of the supporting structure and its relatively high performance requirements in all aspects, the simulation method alone cannot accurately reflect its stress and damage state.
Method used
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[0027] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0028] The impact load testing device for aircraft engine support structure of the present invention is used in conjunction with a drop weight test bench, which includes a workbench (not shown in the figure) and a hammer head (not shown in the figure). Such as Figure 1~Figure 4 As shown, the test device of the present invention includes a fixed seat 1 and a force transmission member 2, the fixed seat 1 is installed on the workbench, the supporting structure 3 to be tested is arranged on the fixed seat 1, the force transmission member 2 and the supporting structure 3 Connected, the force transmission member 2 is used to bear the impact load applied by the hammer head, and transfer the impact load applied by the hammer head to the supporting structure member 3 .
[0029] Such as Figure 5 As shown, the fixed seat 1 includes a bottom plate 11 ...
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The invention discloses an impact load test device and method for an aircraft engine supporting structural member. The test device is arranged on a drop hammer test bench for use, the drop hammer testbench comprises a worktable and a hammerhead, the test device comprises a fixing seat for mounting the supporting structural member and a force transmitting member for transmitting the impact load applied by the hammerhead to the supporting structural member, the fixing seat is disposed on the worktable, the supporting structural member is disposed on the fixing seat, the force transmitting member is connected to the supporting structural member, and the test device further comprises a strain gauge attached to the supporting structural member for testing the impact load experienced by the supporting structural member. The impact load test device for the aircraft engine supporting structural member is simple in structure, low in manufacturing cost, safe and reliable, can realize dynamic test of the supporting structural member under different impact energy, and can obtain the impact load experienced by the supporting structural member during the test, thereby obtaining the dynamic mechanical properties and failure behavior of the supporting structural member under different working conditions.
Description
technical field [0001] The invention relates to the technical field of material performance testing, in particular to an impact load testing device and method for aircraft engine support structures. Background technique [0002] As the power source of aircraft and automobiles, the engine is just like the human heart. The support structure is one of the important components of the aircraft turbofan engine, which bears very complex mechanical loads. In order to reduce the impact of other key components of the engine when the fan blades fall off, when the support structure is subjected to the transmitted impact load, the thinning area is required to break and break. Its material has high mechanical properties, and it also needs to protect the engine. In order to shorten the product development cycle and reduce development costs, the use of finite element simulation technology for structural design has become a mainstream in the industry. Due to the complex structure of the s...
Claims
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Login to View More IPC IPC(8): G01N3/303G01M7/08
CPCG01N3/303G01M7/08G01N2203/001G01N2203/0039G01N2203/0218
Inventor 吴海龙曹家健王世英黄毅夏勇葛宇龙周青
Owner AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG