这种设计方法是在不改变主要设计参数的基础上，通过调整齿轮宽度，实现重迭系数的圆整，提高齿轮承载能力，延长使用寿命。
It doesn't change main designing parameters, and through adjusting the gear width, the round number of coincidence coefficient and the improvement of gear life and bearing capacity Can be realized.
提出了“分子真空寿命”这一新的物理量，并以此概念推导出测量气体分子热适应系数的方法。
The new physical concept "molecule vacuum life" is presented, on which the method of measuring the thermal adaptation coefficient of gas molecule is deduced.
将安全系数增强一倍的设计理念，令设备安全使用寿命更加延长。
Strengthens a time of design idea the safety coefficient, Makes the equipment safety handling life even more to lengthen.
预应变可以延长疲劳裂纹形成寿命，提高疲劳裂纹形成的抗力系数和裂纹形成的当量应力门槛值；
The pre-straining prolonged the fatigue crack initiation life, and increased resistance coefficient and equivalent stress threshold of the fatigue crack initiation.
优点：有较好的韧性，宝石头部摩擦系数低，具有超长的使用寿命。
Advantages: good toughness, low friction coefficient of the ruby head, long life.
着重分析影响精密分度装置寿命的接触表面压力，基本动载荷，温度系数等因素。
This article mainly analyses the factors that affect the precise indexer life, touching surface pressure, basic motion load and temperature factor for example.
充电电压和放电反峰系数的增大使发热和介质内应力加剧，可以使寿命缩短90%以上。
The increase of charge voltage and discharge inverse peak factor make the life of MLC over 90% shorter by enhancing both heat production and internal stress of the dielectric.
本文介绍了这种衬套的结构特点、材质分析、制造工艺和摩擦系数测量及规定寿命试验的试验过程。
Structural features, material analysis, manufacturing process, friction coefficient measurement and rated life test of the bushing are discussed.
并采用应力严重系数法估算了其疲劳寿命。
The stress severity factor method is used to calculate the fatigue life of the structure.
并从实验角度验证了灯电流波峰系数对灯寿命的影响。
Furthermore, from the Angle of the experiment, it verifies the influence exerted by the wave crest coefficients of the light current on the light lifetime.
并介绍了ZL30 B型装载机全尺寸构件疲劳试验的情况和结果，给出了疲劳寿命的分析系数。
Besides. the fatigue test and its results of full-sized structural components of loader model ZL30B are introduced and the analysis coefficients for fatigue service life are given.
本文介绍了一种用于高压小尺寸往复密封中，具有寿命长、密封性好、摩擦系数小的组合密封，即V型橡胶圈和V型PTFE圈组合密封。
This paper introduces a reciprocating seal with high pressure and small size. The seal is composed of rubber V-ring and PTFE V-ring, and has long lifetime, good sealness and low friction coefficient.
分析了“节能寿命”的控制基线值，给出了“节能系数”的概念。
Then, it analyses the control base line of"energy-saving life", introduces the concept of"energy-saving coefficient".
最后，借鉴现有的沥青路面罩面衰变模型，通过对材料影响系数的修正，预估了纤维沥青碎石封层路面的使用寿命，突显了其优越性。
Finally, draw the existing asphalt pavement decay model, through amending the material influence coefficient, predict fiber asphalt chip seal pavement life, highlights its advantages.
低周疲劳常采用寿命分散系数描述结构疲劳强度的固有分散性，而高周疲劳采用疲劳强度减缩系数来描述。
The factor of life scatter is used for depicting the dispersibility of fatigue strength in low cycle fatigue, but in high cycle fatigue is the fatigue strength reduction factor.
本文介绍了塔式起重机钢结构安全寿命评估中的应力幅及应力幅谱系数的计算方法和过程。
This paper describes the calculation method and process of stress amplitude and stress amplitude spectrum to evaluate the safety life time of steel structure for tower crane.
给出了现场条件下液压元件寿命估算的数学模型和系统目标清洁度与寿命延长系数的关系。
Advanced the mathematical model of the hydraulic components life estimation method and established the relations of the system target cleanliness to the life extension coefficient.
对负荷增大，但磨擦系数无敏感变化，因此重负荷下，磨擦系数极小，并且长期保持精度不变，可得机械使用寿命长期保持。
On the load increased, but not sensitive to changes in friction coefficient, so heavy, the friction coefficient is extremely small, and the same long-term accuracy can have long-term mechanical life.
防冲板前面安装超高分子量聚乙烯，可减小船舶与护舷的摩擦系数，大大降低船舶靠泊时剪切力，从而提高护舷使用寿命。
UHMW-PE set in front of panel, it can lower friction factor between vessel and fender, lower the shear strength while vessel berthing, and raise utility of fender life.
采用此方法确定疲劳缺口系数，获得的损伤参量与裂纹形成寿命关系的数据分散带最窄。
If the plastoelastic fatigue notch factor was regarded as the transforming factor of damage calculation, the data scattering zone of life curve was most narrow.
可降低摩擦系数，提高密封的可靠性和使用寿命。
By using it, the friction coefficient can be reduced and the sealing reliability and service life are improved as well.
为了得到与给定额定寿命相应的基本额定径向动负荷或基本额定轴向动负荷，适用于当量动负荷的修正系数。
To obtain a fixed set with the basic rating life of the corresponding radial axial dynamic load, or the basic dynamic load rating for equivalent dynamic load correction factor.
该胶圈柔软光滑，握持力好、弹性好、抗臭氧、耐磨性好，摩擦系数波动范围小，使用寿命长。
Soft, slippery, strong grip strength, good flexibility, fine performance of ozone proof, hardwearing, oil stain proof. A smaller friction factor Long service life.
在假设产品寿命服从对数正态分布情况下，提出了用分散系数法评估极小子样产品的可靠性。
When fatigue life following lognormal distribution, fatigue life scatter factor (LSF) methods are constructed to evaluate component reliability with very small samples.
民机结构的疲劳寿命服从双参数威布尔分布，其分散系数与战斗机基于对数正态分布的疲劳寿命分散系数存在明显的不同。
The fatigue life of civil aircraft structures obeys two parameter Weibull distribution, its scatter factor is significantly different from that obeys logarithm normal distribution.
通过应力修正系数对危险点最大应力进行修正，将应力集中和应力梯度效应引入到寿命的估算中，因而扩大了传统的应力寿命法可适用的寿命范围。
Then the effect of Stress Concentration and the Stress Gradient were introduced into the prediction of fatigue life through Correction Coefficient of Stress with the wider suitable life scope.
利用两个不同的电应力下的寿命得出电应力加速系数，然后算出逆幂率系数。
From the experimental data under two different voltage stresses electric acceleration coefficient is calculated then anti-power law coefficient is figured out.
本文指出，根据有限寿命疲劳强度安全系数法设计出的零件仍然有可能屈服失效。作者建议用寿命计算法和图解估值法代替现有的安全系数法。
This paper indicates that the components, which are designed according to the safety factor method of fatigue strength for the finite life, can also be yielded.
建立了考虑氯离子扩散系数空间差异性和时间依赖性的基于可靠度的寿命预测模型。
The life prediction model under chloride ion environment was set up in considering differences in space and time-dependent of the chloride ion diffusion coefficient.
这种材料在水介质中具有较低的摩擦系数和较好的耐磨与密封性能，其使用寿命优于进口的密封材料。
This material possesses a lower friction coefficient, better wear-resistance and seal ability with water medium. Its service life is superior to that of the imported seal material.
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