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本文先按设定的飞机部件对接面垫板厚度局部允许值出现的处数I_1、I_2(n<(I_1、I_2)≤m)和出现处以及处数的随机性得出计算飞机部件对接时前后垫板总厚度局部允许值出现的处数超过n处的危率P(D_∑)的公式,从而可按允许危率反求部件对接面垫板厚度控度用的m数。实例计算结果已由问题提出单位一一二厂采用,取得明显的技术经济效果。 (问题由松陵公司崔赞斌工程师、赵谦仁工程师等于一九八二年五月提出的,同时提供了有关的检测统计数据。)
This article first according to the set aircraft parts butt plate thickness allowable value of the local number I_1, I_2 (n <(I_1, I_2) ≤ m) and the appearance of Department and the randomness of the number obtained when the aircraft docking The total allowable thickness of the front and rear shim plate where the number of occurrences exceeds the risk of n at the P (D_Σ) formula, which can be allowed to reverse the risk of the component backing plate thickness control with the m number. The calculation result of the example has been adopted by the 112th unit of the unit proposed by the problem, and obvious technical and economic effects have been achieved. (The questions were raised by Mr. Cui Zanbin and Mr. Zhao Qianren of Songling Company in May 1982 and provided relevant testing statistics.)