最新刊期
      卷 ， 期 2 ， 1997
      • Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.001
        摘要：An improved homotopy continuation algorithm based on improving homotopy path tracking is proposed in this paper.The improved algorithm can avoid the phenomenon of resolution omission of present homotopy continuation method in solving deficient polynomial systems.The homotopy continuation method with the improved algorithm for path tracking has been used in solving the mechanism problems sucessfully.  
          
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      • Similarity Analysis and Design of Gear Transmission Systems

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.002
        摘要：In this paper,the recognition and expression of component elements of gear transmission systems,the construction method of similarity unit,the principle of similarity analysis and the design of similar systems,and a relationship between similarity measure and series design are studied.Also,an example to verify the practicability of the theory and method is given.  
          
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      • Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.003
        摘要：The existent automatic generation method for 3 D contact finite element analyzing mesh of helical tooth proves to be unsuitable for large width helical gears,and has the limitation of the analyzing model being established only at pitch point.In this paper,concerning at large width helical gears,a mixed coordinate is adopted to built up the automatic finite element mesh generation algorithm for tooth meshing at various positions,and a modular,structural,parametric pre processing program is developed.Only inputting basic parameters of gears,all data for 3 D contact finite element analyzing of helical tooth canbe obtained.The program presented can be used conveniently,and is suitable for application in engineering design.  
          
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      • Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.005
        摘要：By considering the compressibility of lubricants,the influence of contact ratio on the loads of gear teeth,and the effects of variable curvature of tooth profile and sliding velocities,a group of equations of transient elasto hydrodynamic lubrication and a solution method are given in this paper.The pressure distribution and the form of oil film at the any point on the path of contact,and the variable curve of the thinnest oil film along the path of contact are also obtained by means of a full numerical solution based on the operating condition of the gear transmission.  
          
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      • 齿轮故障的振动频谱机理研究

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.006
        摘要：本文建立了齿轮副的动态微分方程，对故障齿轮按大、小周期从理论上研究了其动态响应的频谱机理。  
        关键词：齿轮装置;故障;频谱机理   
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      • Study on Coaxial K H Type Planetary Gear Reducer

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.007
        摘要：The structure of a new type of planetary transmission coaxial K H type planetary gear reducer is givern.Its characteristies,forces and efficiency are analyzed and calculated.The results show that forces acted on shaft pin and planet carrier bearing are smaller and efficienc of the mechanism is higher than that of K H V type.  
          
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      • 普通式卫星齿轮传动系统设计探讨

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.008
        摘要：本文基于行星齿轮传动理论基础，对普通式卫星齿轮传动系统的基本特性、设计公式进行了分析推导，并对其均载机构的设计进行了探讨  
        关键词：普通卫星齿轮传动;设计计算;均载机构   
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      • 滚子套筒星齿传动的运动特性分析

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.009
        摘要：本文根据滚子与套筒星齿的啮合关系，分析了这种传动的瞬时传动比的变化情况，并与摆线针齿的啮合作了对比，验证出非共轭齿啮合同样也可用于实现恒速比传动，从而获得满意的运动平稳性。  
        关键词：行星传动;滚子;套筒星齿;传动比   
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      • 带传动中弹性滑动的理论分析

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.010
        摘要：本文对带传动中有关弹性滑动的几个问题作了详细的分析推导。分析了传动中带的拉力变化规律，带与带轮之间分布的正压力和摩擦力；从理论上证明了滑动弧总是靠在带的绕出边侧；并推导出弹性滑动角α′以及弹性滑动率ε的计算公式。  
        关键词：带传动;弹性滑动;弹性滑动率   
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      • Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.011
        摘要：From the tolerance groups of numbered Ⅰ,Ⅱ,and Ⅲ,one comprehensive tolerance or limits deviation is chosen as an object of the quatity loss functions and its work s allowance can be calculated by use of the function.And then the accuracy grade of the relevant tolerance group is determined by the corresponding work s allowance.The minimum and maximum backlash of gearing are resolved in view of the transmission requests.Considering the functions to backlash are due to Ess,Ews, and fa,wa can calculate their work s allowances and obtain standard tolerances and limits deviations.  
          
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      • Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.012
        摘要：Reducing gear noise is one of very important problems in gear fields.Concave profile is main factor to cause gear noise.This paper introduced the electro chemical shaving process which is used to eliminate the concave profile and manufacture the gear with a little convex profile.As a result,the gear noise has been reduced by about 5 db.Experiments have proved that this process is available.  
          
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      • 曲柄摇杆机构的寻优方法

        Issue 2, (1997) DOI: 10.16578/j.issn.1004.2539.1997.02.013
        摘要：提出了曲柄摇杆机构设计的寻优问题，针对已知Ｋ、φ、ｃ的条件，通过统计规律及０．６１８法给出了寻优设计的方法，为优化设计曲柄摇杆机构提供了条件。  
          
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