| 2. | Secondly , paper introduces the composition structure and the manufacture craft characteristic of airplanes , describes the structure and the main assembly process and the assembly characteristic of the n # fuel tank section , points out the assembly accuracy control of the n # fuel tank section . thirdly , paper analyses in detail problems which exist in the current riveted assembly of the n # fuel tank section , proposes the improve measures against the existent problems . finally , paper forecasts in theory the positive effect that the new plan will bring , introduces the practical result after approval test , analyses the differences of both
具体做了以下几方面工作:第一,详细阐述了工作研究的基本原理;第二,介绍了飞机的组成结构、飞机制造工艺的特点、 n #油箱段的主要结构、 n #油箱段的主要装配过程、 n #油箱段的装配作业特点和n #油箱段的装配准确度的控制方法;第三,具体分析了n #油箱段铆接装配生产线现行作业中存在的问题,针对存在的问题,提出了具体的改进建议,并形成了新的改进方案;第四,从理论上预测了新方案将会带来的积极效果,介绍了新方案在现场试验验证的实际结果,并对两者之间存在的差异进行了对比分析与研究。 |
