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1.To Analyze and Adjust Tooth Face Contact for Spiral Bevel Gear Using Error Method
用误差法进行螺伞齿轮齿面接触分析调整收藏指正
2.Through theoretical analysis and calculation, this paper proves that alignment of hob only leads to unsymmetrical distribution of tooth profile edge but not results in tooth profile distortion during hobbing, This is favourable to analysis and recognition of bobbing error.
本文通过理论分析和计算证明了滚齿时滚刀不对中只引起齿廓棱边分布不对称,不会引起齿形歪斜,有利于对滚齿误差的分析和认识.收藏指正
3.Analysis of error limits for tooth profiles laid down in "Depot repair specifications for DF_4 diesel locomotive
对《东风_4型内燃机车段修规程》齿形误差限度的分析收藏指正
4.The method takes into account the influences of the deformations of gears and Supports, the error and so on. It has the advantages of high Calculation accuracy, easy to use and has met the technological requirement of tooth profile modification for automotive gears.
传统的齿廓修形计算方法不能满足斜齿轮的修形要求,本文提出了一种斜齿轮齿廓修形优化设计的新方法,包括了齿轮变形、支承变形、离心变形、误差等因素的影响,具有计算精度高、应用方便的优点,满足了汽车齿轮修形的使用和工艺要求。收藏指正
5.Based on the theoretical and experimental analyses, the paper discusses the effects of the parallel error of the axes and the load on the tooth flanks of CATT gear, and come to the conclusion that the point-contact CATT gear is not sensitive to the working condition such that it has wide adaptability.
本文通过理论分析及试验研究,具体分析了轴线平行度误差及齿轮承载大小等因素对齿面接触区的影响,得出了点接触型圆弧齿线圆柱齿轮对以上影响因素具有不敏感性的重要结论,从而证明了该种齿轮对外部条件具有广泛适应性的独特优点.收藏指正
6.Machining deformation of aircraft monolithic component is simulated by finite element method (FEM) and validated by experiment.The initial residual stress in pre-stretched plate is generated by simulating quenching and stretching processes.With a single tool-tooth milling process FEM,the machining loads in monolithic component material removing is obtained.Restart-calculation is put forward to complete the whole simulation of machining process.To verify the FEM result,an experiment is carried out.The deformation distribution of the monolithic component resulting from FEM shows a good agreement with the experiment result,which indicates that the key technologies presented in the paper are practicable and can be used to simulate the milling process of monolithic component to predict its deformation.Lengthy and expensive trial and error experiment process can be avoided.
在模拟淬火、拉伸过程获得含有初始残余应力的预拉伸板材以及模拟单齿切削过程获得切削载荷的基础上,提出并采用接力算法,对一航空整体结构件的材料铣削过程进行有限元仿真,同时进行了试验研究.结果表明,有限元模拟的整体结构件的变形与试验具有一致性,从而证明提出的整体结构件加工仿真关键技术的可行性,避免了为研究加工变形而进行的繁琐的试错法.收藏指正
7.Abstract: Machining deformation of aircraft monolithic component is simulated by finite element method (FEM) and validated by experiment.The initial residual stress in pre-stretched plate is generated by simulating quenching and stretching processes.With a single tool-tooth milling process FEM,the machining loads in monolithic component material removing is obtained.Restart-calculation is put forward to complete the whole simulation of machining process.To verify the FEM result,an experiment is carried out.The deformation distribution of the monolithic component resulting from FEM shows a good agreement with the experiment result,which indicates that the key technologies presented in the paper are practicable and can be used to simulate the milling process of monolithic component to predict its deformation.Lengthy and expensive trial and error experiment process can be avoided.
文摘:在模拟淬火、拉伸过程获得含有初始残余应力的预拉伸板材以及模拟单齿切削过程获得切削载荷的基础上,提出并采用接力算法,对一航空整体结构件的材料铣削过程进行有限元仿真,同时进行了试验研究.结果表明,有限元模拟的整体结构件的变形与试验具有一致性,从而证明提出的整体结构件加工仿真关键技术的可行性,避免了为研究加工变形而进行的繁琐的试错法.收藏指正
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