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直升机结构的缺陷容限验证在FAR/CCAR27/29.571条适航条款中有明确的要求。文章提出了全尺寸结构缺陷容限验证思路,对验证的各个环节,包含缺陷的类型及参数、缺陷容限特性曲线基本参数及安全系数、真实缺陷下载荷或应力的修正、结构的缺陷容限性能、检查周期的确定等进行了探讨,为开展直升机结构缺陷容限验证工作提供了技术支持。
Defects in helicopter structure Tolerance verification There are clear requirements in FAR / CCAR27 / 29.571 airworthiness terms. In this paper, the idea of full-size structural defect tolerance verification is proposed. The verification of each link includes the type and parameters of the defect, the basic parameters of the defect tolerance curve and the safety factor, the correction of the load or stress under the true defect, Performance and inspection cycle were discussed, which provided technical support for the verification of structural defect tolerance of helicopters.