- 更多网络例句与等效部件相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this article, according to the structure of Armature which is the core part of an Electrodynamic Vibration Shaker, a three-degree equivalent dynamic model is set up and then the quick calculating formula of the first-order axial harmonic frequency of Armature is educed.
针对电动振动台的核心部件——动圈,根据动圈的结构,建立了动圈的三自由度等效动力学模型,导出了动圈轴向一阶共振点的快算公式。
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More life distributions, Gamma distribution ,and reliability characteristic are discused in this paper.
目前所有文献研究的都是部件寿命服从指数分布时的情况,本文将等效因子的概念推广到常见的伽玛分布。
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This paper, which focused on the structure optimization theory and method, has finished such studies as follows: The three dimension model has been built, which provide the necessary conditions for the building of the dynamics equivalent model. By the launch dynamics simulation, the loads of the key joints when the rocket is launched has been got, which provide the necessary data for the finite element analysis and the structure optimization. The finite element model of the excess weight parts of the rocket has been built, buy the finite element intension analysis of the model in two conditions, the displacement and the stress of the key points have been got, which make us know the distributing of the stress and the transmogrification of the part. To satisfy the intension and the precision design request and to decrease the weight of the part as many as possible, the part has been topology optimized by the structure optimization theory and method. After that, the new model has been analysis in structure and launch dynamics. The contrast of the character change of the old part and the new part and the influence on the rocket system have been studied.
本文以结构优化理论和方法为核心,主要做了以下工作:建立了某自行火箭炮全炮三维实体模型,为建立该火箭炮系统的动力学等效模型提供了必要条件,进行了发射动力学仿真,得到该火箭炮发射装置各关键连接部位在发射状态下的载荷,为有限元分析和结构优化提供了必需的数据;建立了该火箭炮发射装置超重部分的有限元模型,分两种工况,对模型进行了有限元强度分析,得出了关键部位的位移和应力值,对其的应力和变形分布有了具体的了解;运用结构优化的理论和方法,对该火箭炮发射装置超重部分进行了拓扑优化,使其在满足强度和精度的要求下尽可能多地减轻重量,对优化后得到的模型进行了结构分析和发射动力学分析,对比了该部件优化前后的特性变化以及对火箭炮系统的影响。