结果表明，应力腐蚀是该膨胀节失效的主要原因，而局部的点蚀和残余应力、工作应力是应力腐蚀的必要条件。
The results show that the stress corrosion is the main failure causing of the bellows expansion joint, while the local pit corrosion, residual stress and the working stress is the necessary condition.
一般外壳的固定膨胀点能比蛋形外壳更好地限定局部激波的位置。
The fixed expansion points of the general shroud allow a better definition of local shock locations than on ogive type shrouds.
空气轴承可以向心地对着膨胀的预成型体吹出空气以限制膨胀和阻止预成型体和局部加热源相接触。
An air bearing may centripetally blow air against the expanding pre-form to limit expansion and prevent contact of the pre-form with the localized heat source.
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