最新刊期
      卷 ， 期 4 ， 1994
      • Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.001
        摘要：The coupler curve equation of planar inverse four-bar parallelogram linkdges has been studied in this paper. The fourth order explicit analytical expression of the coupler curve has been derived using symbolic numerical technique.  
        关键词：Planar four-bar linkages;Coupler curve;Symbolicnumerical technique   
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      • Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.002
        摘要：Aiming at the novel cone-generated enveloping cylindrical worm drive with two degree of freedom, a optimal design of tooth profile has been proposed to obtain the opti.mal meshing area. .The results of optimization make not only the scape and distribution of contact line better to generate hydrodynamic lubrication, but also its bearing capacity higher.  
        关键词：Two degree-of-freedom;Worm drive;Optimal design   
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      • 机械结构域内热源的模糊求解方法

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.003
        摘要：机械结构域内热源的模糊求解方法北京航空航天大学柳贡慧中国矿大北京研究生部周有强前言用边界无法求解含有未知边界条件的传热问题时，虽然能够得到期望的解，但仍存在一定的局限性。（ｌ）需要在结构上划分较多的单元，测量多点的温度Ｚ（２）形成的线性方程组是病态，...  
          
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      • The Optimal Design of Crand-Type In volute Planetary Gear Drive

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.004
        摘要：The transmitting ratioes of the crank-type involute planetary gear drive are distributed optimally with aim of drive size minimization and the geometrical parameters of the internal gear pair are determined optimally while maximize its efficiency of engagement in the paper.  
        关键词：Crank-type involute;Planetary gear drive;Optimal design   
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      • Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.005
        摘要：By combining the operating param eters of transmission gears .the thermal hydrodynamic analysis on spur invblute gears is given by means of a full numerical methods. The oil, Pressure distribution, filmprofile, temperature distribution and coefficients of friction at variable points of meshing gears, and minimum film thickness in the whole meshing course are obtained.  
          
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      • Features of Fatigue Cracks in Gears and Diagnosis Methods

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.006
        摘要：In this paper, features of fatigue cracks in ge.ars and diagnosis methods are studied. Multiple methods are compositely used for analyzing the vibration signals of the gearbox. The crack on gear tooth is successfully recognized.  
          
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      • Research on the Quality Test of Gearbox from the Vibration Signals

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.007
        摘要：A monitoring system used for the quality test of high spepd gearbox has recently been developed in our research institute. The system controlled by a computer samples vibration signals of gearbox on line. The characters of the power spectrum of the wide band demodulated signals can be used to check on the quality of gearbox. The experiments show that the system is efficient.  
        关键词：Gearbox;Monitoring;Demodulated signal;Power spectrum;Quality test   
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      • Research on Shaking Force and Shaking Moment Balancing or Spatial Linkage

        Zhao Xinhua
        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.008
        摘要：In this paper; using the method of dynamic Mass -replace, in the dynamic balance of spatial mechanisms, the mass distribution matrix that has to be satisfied for the spatial Component is first obtained through an example of spherical four-bar linkage and the shaking force and the shaking moment of this spherical four-bar linkage is balanced then.  
        关键词：Mass;Shaking;Mechanism design   
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      • An Analysis of Focres in Planetary Gears with Inner Planet Gear

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.009
        摘要：In this thesis, An analysis about meshing forces and bearing forcgs in planetary gears with inner Planet acal’has been blade,Eguations were derived out, which Were used to calculate meshing forces and bearing forces and were also used to calculate gear strength and life of bearing.  
          
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      • Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.010
        摘要：In this paper, the concepts about similarity factor and nearness are summarized and a new method of pattern distinguished based on the fuzzy similarity nearness （PFSN） is proposed. Then, a fault diagnosis experiment of gearbox is given and the result shows the correctness and effectiveness of this method.  
          
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      • Determination of parameters Belleville Springs for Tsubaki Disco

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.012
        摘要：In ordet to obtain a good effect of Disco properties, msed on analysihg load deflection characteristics of Belleville springs,Parameters of Belleville springs for Disco is determined in this paper.  
        关键词：Speed variator;Belleville springs;Paramters   
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      • Small Tooth Number Difference Plane tary Reducer With External Double Crane

        Yang Xihe
        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.013
        摘要：The Construction and features of samll tooth number difference planetary reducer with external double cranks, also called tri-ring reducer, were introduced in this paper. Based on the detailed mechanics analysis,thorough evaluation was given for the forces applied on the crank bearings when the power is input through one or two shafts. The results can be used as a reference in designing this kind of reducer.  
          
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      • Study on the Output Capacity of DISCO Variator

        Issue 4, (1994) DOI: 10.16578/j.issn.1004.2539.1994.04.014
        摘要：The fundamental conception about output capacity of variator was expounded and variational tendency of the output capacity of DISCO variator was analysed in this paper. At the same time, we discussed the way of raising its load capacity, and finished its experimental research.  
        关键词：Variator;Sliding ratio;Output capacity   
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      • 《全国汽车齿轮产品质量分析研讨会）会议纪要

        Issue 4, (1994)
        摘要：《全国汽车齿轮产品质量分析研讨会)会议纪要根据国家技术监督局和机械工业部科技质量司关于产品质量监督抽查要作好管、帮、促行业不断提高产品质量的要求，国家齿轮产品质量监督检验中心与中国齿轮专业协会，在一九九四年第二季度汽车齿轮国家监督抽查后，于一九九四年...  
          
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