CAJ | 학술논문

介绍了两种推力销应变桥路，来测量航空发动机推力；根据发动机推力销的实际承力形式，推导出推力销载荷分布公式；利用 ANSYS 对推力销有限元模型进行了载荷仿真，并分析了推力销所承受的推力与应变之间的关系。通过对剪力应变桥和弯矩应变桥对比分析发现，剪力桥和弯矩桥都与推力呈线性关系；从应变数值大小来看两种桥路均具有工程实用性，但从误差分析来看弯矩桥更具操作性。这些结论为后期开展推力销载荷标定试验提供了理论参考。
개소료량충추력소응변교로，래측량항공발동궤추력；근거발동궤추력소적실제승력형식，추도출추력소재하분포공식；이용 ANSYS 대추력소유한원모형진행료재하방진，병분석료추력소소승수적추력여응변지간적관계。통과대전력응변교화만구응변교대비분석발현，전력교화만구교도여추력정선성관계；종응변수치대소래간량충교로균구유공정실용성，단종오차분석래간만구교경구조작성。저사결론위후기개전추력소재하표정시험제공료이론삼고。
Two kinds of strain bridge to build mathematical equations are introduced between thrust and strain in aero-engine thrust pin. Based on the actual bearing strength form of thrust pin, mechanics equation on the load distribution was deduced. the structure static analysis was simulated by using ANSYS software. The simulation showed whichever bending area or shear area the relation between thrust and strain were linear well. Strain calculations value in bending strain area and in shear strain area are very close, and so two strain bridges above are both practical in engineering. But from error analysis the bend strain bridge was much smaller and more operational than the other. These conclusions provided theoretical reference in carrying out load calibration tests in thrust pin.