CAJ | 학술논문

直升机后起落架轮胎在地面例行充气过程中发生爆裂，通过对轮胎外观检查，裂纹扩展走向分析，判断裂纹起源位置，对轮胎壁厚、沟槽深度进行测量，分析轮胎磨损情况，对轮胎开裂位置处的断口宏微观形貌进行分析判断，确立开裂模式，结合轮胎所用材料特性及轮胎表面微裂纹特征给出轮胎爆胎的主要原因：轮胎爆裂起源于胎面“X”形的相交点，呈线源特征；橡胶材料应力老化是导致轮胎在外力作用下发生爆裂的主要原因。
직승궤후기락가륜태재지면례행충기과정중발생폭렬，통과대륜태외관검사，렬문확전주향분석，판단렬문기원위치，대륜태벽후、구조심도진행측량，분석륜태마손정황，대륜태개렬위치처적단구굉미관형모진행분석판단，학립개렬모식，결합륜태소용재료특성급륜태표면미렬문특정급출륜태폭태적주요원인：륜태폭렬기원우태면“X”형적상교점，정선원특정；상효재료응력노화시도치륜태재외력작용하발생폭렬적주요원인。
An undercarriage tyre burst during the process of routine gas charging. In order to find out the failure cause, macro and micro observation, wall thickness and groove depth measurement, and material performance analysis were carried out. The results show that the cracking of the tyre initiated from the X-type crossover point of the thread, presenting linear source feature. Stress aging of the rubber is the main cause for the burst of the tyre under the effect of external force.