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(一、二、三、四见本文上) 五、综合方案(第4方案)与原型(第1方案)的比较SK662型客车的综合方案(前车采用了宽柱、中间疏两侧密的车顶构件分布及斜撑结构)与原结构的计算分析结果列于表5。由表5可知,在不改变车身外廓尺寸、不增加用材的前提下,综合方案较原方案在力学性能上有明显区别:扭转剐度提高23%,车身主要高应力点应力下降30～35%,车身应力分布趋于均匀,前车门对面区域的高应力、高应变区域消
(One, two, three, four see this article) V. Comprehensive program (fourth scheme) and the prototype (first scheme) comparison SK662 bus integrated program Roof member distribution and diagonal structure) and the original structure of the calculation and analysis results are shown in Table 5. Table 5 shows that, without changing the size of the car body, without increasing the material under the premise of the overall program than the original program in the mechanical properties are significantly different: the torsional stiffness increased by 23%, the body of the main high stress stress drop 30 ~ 35 %, Body stress distribution tends to be uniform, the front door opposite the area of high stress, high strain area consumption