共查询到19条相似文献,搜索用时 171 毫秒
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《机电产品开发与创新》2017,(4)
研究计量泵箱体受力规律,分析箱体结构对计量泵使用寿命的影响,优化箱体结构尺寸,提高箱体的生命周期。以流体力学为基础计算计量泵在实际工况中箱体最大作用力;使用Solid Works Simulation软件对箱体进行静力学分析;以箱体静力学分析及材料S-N曲线为基础,对箱体进行疲劳分析;根据分析结果对箱体尺寸数据进行优化。从各项分析结果可以看出,箱体最大受力为11630N,箱体内部加强筋处最大应力为85.13MPa,经过优化箱体寿命提高625.5倍。 相似文献
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基于Workbench高速动车组用驱动齿轮箱箱体强度分析 总被引:1,自引:0,他引:1
《机械传动》2017,(2):77-82
针对我国现在所用的高速动车组齿轮箱长期被国外垄断,且面临齿轮箱箱体裂纹故障频发的问题,对高速动车组用铝合金箱体进行重新设计。使用三维建模软件Solid Works创建箱体模型,对所设计箱体在短路和启动两种工况下进行载荷计算,并用有限元分析软件Workbench进行强度分析,仿真试验结果验证了所设计箱体在这两种工况都不会出现塑性变形和裂纹,根据TJ/JW 064—2015评估启动工况的分析结果,证明了所设计箱体满足列车运行的要求。所进行的研究工作对高速动车组齿轮箱的自主研发有重要的参考价值。 相似文献
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在用有限元方法求出齿轮箱表面振动响应的基础上,将齿轮箱作为由有限噪声源构成的集合体,用声学理论推导表面振动与放射噪声的关系,由多个微小单元噪声压的矢量预测出齿轮箱的整体噪声压和声强。进而,用实验方法检验齿轮箱振动噪声预测结果,证明所提出的振动噪声预测与实验结果基本一致,说明所提出的方法能够在设计阶段预测齿轮箱振动噪声,成为齿轮箱的减振降噪优化设计的参考。 相似文献
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船用齿轮箱箱体的有限元模态分析 总被引:1,自引:0,他引:1
在Pro/E中建立船用齿轮箱箱体的三雏实体模型,然后采用有限元法,建立了该箱体的有限元动力学模型,最后用ABAQUS软件对箱体结构进行有限元模态分析,计算出了齿轮箱箱体的固有特性,对箱体的设计和改进有一定指导意义. 相似文献
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Ju Seok Nam Young Jun Park Jeong Kil Kim Jeong Woo Han Yong Yun Nam Geun Ho Lee 《Journal of Mechanical Science and Technology》2014,28(8):3033-3040
This study suggests the theoretical methodology to construct a small-sized similarity model having the same load capacity as a large gearbox. The prototype gearbox was a 2-MW wind turbine gearbox consisting of two planetary gear stages and one parallel shaft gear stage, and the specifications of its 1/4 scale similarity model were determined by applying similarity theory. The constructed similarity model was validated by comparing load capacity parameters with those of the prototype gearbox using analysis tool. The validation results showed that the nominal tooth root and contact stresses of the similarity model and prototype gearbox were identical, whereas the tooth root and contact stresses satisfied the similarity condition within 2% difference. Furthermore, most factors that influenced the tooth root and pitting stress limits were identical. Thus, information related to load capacity, one of the major design evaluation criteria for gears, of large-size gearbox can be replicated by its similarity model. Although this is a theoretical methodology and still has many difficulties to apply to practical situations, these results have opened up the possibility of applying similarity theory to load capacity of gearboxes. Because the load capacity is the primary cause of commercial gearbox failure, this result also shows the possibility of life similarity in the gearbox application, although some further study is needed. 相似文献
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