基于ANSYS的飞机轮胎分解机效果分析

针对B737系列的飞机子午线轮胎H40x14．5—19，在有限元软件ANSYS中建立了轮胎的胎冠、帘布、胎肩等9种不同的结构层。考虑了轮胎的三重非线性（材料非线性、几何非线性、接触非线性）以及轮胎与轮辋由于长期使用产生的粘合对轮胎分解的影响，利用pilot节点法模拟了拆胎机不同形状压盘的压胎过程。结果表明当压盘β角为40°时，轮胎分解效果最好。该模型对轮胎分解机结构设计、压盘的优化提供了依据。

Result analysis of plane tyre dismounting machine based on ANSYS

For plane＇s radial tyre H40 × 14.5-19 of Boeing B737 series aircraft, 9 different structural layers of the tire are established in ANSYS such as tread, ply, the tyre shoulder, etc. The tyre pressuring progresses of different shape disks are simulated when considering the three non-linearity of tyre （material non-linearity, the geometric nonlinearity and contact non-linearity） and the influence of tyre and rim＇s adhesion due to long-term use by the pilot node method. The result shows that the tyre decomposition is best when β equals to 40°. The model can provide a theoretical basis to structures＇ design of plane tyre dismounting machine and the further optimization of disk.