航空学报 > 1987, Vol. 8 Issue (2): 75-82

地坪的热膨胀在飞机制造中对互换协调的影响

刘忠梁   

  1. 陕西飞机制造公司
  • 收稿日期:1985-08-22 修回日期:1900-01-01 出版日期:1987-02-25 发布日期:1987-02-25

INFLUENCE OF SHOP FLOOR THERMAL EXPANSION ON INTERCHANGEABILITY AND COORDINATION OF AIRCRAFT DURING ASSEMBLY

Liu Zhungliang   

  1. ShanXi Aircraft Company
  • Received:1985-08-22 Revised:1900-01-01 Online:1987-02-25 Published:1987-02-25

摘要: 本文针对大、中型飞机生产中出现的严重不协调现象,对厂房地坪相对于室温变化的伸缩情况,进行了试验研究。测出了厂房地坪相对于室温变化的伪热膨胀系数α地伪,找出了在与地坪固定的型架中装配产品时,产生严重不协调现象的原因是厂房地坪的伪热膨胀系数大大小于工装和产品常用材料钢和铝合金的热膨胀系数,而严重地影响着固定于地坪上的型架中各尺寸随室温变化的伸缩量。同时也导出了在不同结构型式、不同材料的工装间,在不同室温下装配产品时,所产生的热膨胀综合误差的通用计算公式。探讨了型架结构发展的方向。

Abstract: This paper introduces experimental investgation on the serious incoodination resulted from non-uniform thermal expansion of shop floor, jigs and aircraft components.A general formula for calculating the resultant error during assembly with different structural type and material of jigs and at different room temperature is given.In addition, the development trend of jig structure is discussed.