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摘要：
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C型机架是巨型压机的关键部分,结构设计时,必须考虑足够的强度和可靠性。应用MSC.Marc软件建立压机的整体三维有限元模型,模拟压机最大载荷工况下进行静态有限元分析,并对影响组合机架强度的几何缺口因素进行分析,得出C型板缺口部位的局部高应力状况及其分布规律,为此进行了降低局部应力的探讨,在已有缺口圆角的基础上,进行了3种局部结构改进。分析表明,应力得到极大的降低,确保了机架的强度要求,取得了令人满意的结果,为C型机架的结构设计提供了有价值的参考依据。
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The C type frame is the key part of the giant pressure machine,the enough strength and reliability must be considered during the structure design.Its three-dimensional finite element model was established by applying MSC.Marc software,the static finite element analysis was done under imitating compressor maximum load conditions,and the geometric gap factor that influenced the combination frame intensity was analyzed.A local high stress condition and its distribution rule were found in the domain of the notch of C plate.According to this situation,the methods that lower the local stress were probed.On the basis of the existing rounded gap,three local structure improvements were designed.Analyses show that the stress is greatly reduced and the required strength of the frame is ensured.The satisfactory result is obtained.This provides a valuable reference for the structural design of C type plate.
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基金项目：
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国家重点基础研究发展计划(973计划)(2005CB724102)
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作者简介：
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参考文献：
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