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本文叙述了对承受非对称双向载荷(垂直和水平方向)一种设想的整体框式机身所进行的光弹性试验研究的结果。同时,验证了作者对这种机身结构所提出的一套应力计算法的适用性。通过试验获得的数据与计算法比较,确定了上法的计算精度,并且为此设想的机身提供了较全面的应力分析结果,特别是确定了上下横梁中截面和左右立柱与滑块平行的水平截面的应力分布规律以及四个内拐角圆弧上的最大应力集中系数,滑块导轨对左右立柱的压力分布规律,下垫板对下横梁的压应力分布规律,整个机身内外边缘的应力分布大小等。所提供的这些数据,如果按通常设计时的经典计算法是无法完全获得的。因此,它们可供研究和设计此类机身结构的合理性以及静强度、静刚度计算时参考。
This paper describes the results of a photoelastic test of a monoblock-type fuselage under the assumption of an asymmetrical two-way load (vertical and horizontal). At the same time, the author verifies the applicability of a set of stress calculation method proposed by the author for the structure of the fuselage. The data obtained by the experiment is compared with the calculation method to determine the calculation accuracy of the upper method and provide a more comprehensive stress analysis result for the fuselage envisaged for this purpose. In particular, the cross-section of the upper and lower beams and the parallel alignment of the left and right columns with the slider The horizontal section of the stress distribution and the four internal corner arcs on the maximum stress concentration factor, the slider rail on the left and right column pressure distribution law, under the beam on the lower beam of the stress distribution, the entire fuselage inner and outer edge of the stress Distribution size and so on. The data provided is not fully available if the classic design of the usual design. Therefore, they can be used to study and design the rationality of such fuselage structure and the static strength, static stiffness calculation reference.