现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
13期
116-118,121
,共4页
杨法立%廖明夫%王四季%蒋云帆
楊法立%廖明伕%王四季%蔣雲帆
양법립%료명부%왕사계%장운범
结构单元%支承刚度%临界转速%航空发动机
結構單元%支承剛度%臨界轉速%航空髮動機
결구단원%지승강도%림계전속%항공발동궤
structural unit%supporting stiffness%critical rotation speed%aero-engine
某型航空发动机轴承试验器采用双“L”形安装边支承结构，采用ANSYS中solid45，solid95及solid187结构单元来计算其支承刚度，并通过传递矩阵法分别计算轴承试验器的临界转速。通过与轴承试验器的实际临界转速对比，分析三种单元结构对于该支承结构刚度的计算准确性，结果表明采用solid187结构单元计算的临界转速误差最小，可用于此种支承结构的静态刚度仿真计算。
某型航空髮動機軸承試驗器採用雙“L”形安裝邊支承結構，採用ANSYS中solid45，solid95及solid187結構單元來計算其支承剛度，併通過傳遞矩陣法分彆計算軸承試驗器的臨界轉速。通過與軸承試驗器的實際臨界轉速對比，分析三種單元結構對于該支承結構剛度的計算準確性，結果錶明採用solid187結構單元計算的臨界轉速誤差最小，可用于此種支承結構的靜態剛度倣真計算。
모형항공발동궤축승시험기채용쌍“L”형안장변지승결구，채용ANSYS중solid45，solid95급solid187결구단원래계산기지승강도，병통과전체구진법분별계산축승시험기적림계전속。통과여축승시험기적실제림계전속대비，분석삼충단원결구대우해지승결구강도적계산준학성，결과표명채용solid187결구단원계산적림계전속오차최소，가용우차충지승결구적정태강도방진계산。
The supporting structure with the double‘L’shape assembling sides is adopted for an aero-engine bearing tes-ter. The solid45,solid95 and solid187 structural units in ANSYS are used to calculate the supporting stiffness of the tester. The critical rotation speed of the bearing tester is calculated with the transfer matrix method. The calculation accuracy of three unit structures is analyzed for stiffness of the supporting structure by comparing it with the real critical rotation speed. The results show that the critical rotation speed got by solid187 has the smallest computation error,so the element type of solid187 can be applied to the simulation calculation of static stiffness of the supporting structure.
