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friction of
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  摩擦
     The result shows that the coefficient of friction of GCr15 steel ring against nano-ZrO2 ceramic block is 37.3% less than that against 45# steel block, the wear weight loss of nano-ZrO2 ceramic block is only 0. 76% of that of 45# steel block.
     结果表明:ZrO2陶瓷比45号钢与GCr15钢对磨的摩擦因数值减少37.3%,其磨损量仅为45号钢磨损量的0.76%。
     Calculation of prestress loss due to friction of prestressing tendon with spatial curves
     空间曲线型预应力摩擦损失计算
短句来源
     It can improve the rationality and reliability of analyzing and designing to simulate the friction of the contact surface between blank and die.
     对模具与坯料接触面上的摩擦进行模拟 ,可以提高分析和设计的合理性和可靠性。
短句来源
     Study of Friction of Rubber by Point Contact
     橡胶点接触摩擦规律的研究
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     Study of Friction of Rubber by a Line Contact
     橡胶线接触摩擦规律的研究
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  摩擦问题
     A study on contact friction of the typical thin-walled beam by computer crash simulation
     车辆典型薄壁梁碰撞仿真中接触摩擦问题的研究
短句来源
     Study on friction of gear based on sliding
     基于滑动的齿轮摩擦问题的研究
短句来源
     This paper briefly reviews the friction theories of rollingprocess,studies the contact friction of cold sheet and strip rolling usingpreparatory displacement principle,and proposes a theory method for de-termining the length of deformation stagnation zone.
     本文对轧制过程的摩擦理论进行了简要述评,应用预位移原理研究了冷轧板带材接触摩擦问题,提出了确定变形停滞区长度的理论方法。
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     The paper makes some primary investigation and analyses and points out the emergency and importance of studying the cultural friction of Japanese invested enterprises.
     本文对此作了初步的调查分析,同时指出了研究在华日资企业文化摩擦问题的紧迫性和重要性。
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     In order to solve the nonlinear friction of flight motion simulator,a nonlinear friction model is analyzed and linearized. The linear dynamic state variable friction model is deduced.
     为解决三轴飞行仿真转台的非线性摩擦问题,该文首先分析了转台中的非线性参数摩擦模型的特性,并将其线性化,得到线性化动态状态变化摩擦模型。
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  “friction of”译为未确定词的双语例句
     The coefficients of hot plastic friction of 3Cr2WSV, 4Cr3Mo2MnVB, 4Cr3Mo2MnSiVNbB, 4Cr5Mo2MnVSi, 3Cr3Mo3VNb and 4 Cr 5 MoSiV steels and the influence of lubrication on the coefficients of hot plastic friction are compared at the same deformation amount at the preheating temperature of 150℃.
     在相同的变形量和150℃预热条件下,对比3Cr2W8V,4Cr3Mo2MnVB、4Cr3Mo2MnSiVNbB、4Cr5Mo2MnVSi、3Cr3Mo3VNb、4Cr5MoSiV 6种热作模具钢的热塑性摩擦系数,以及润滑对热塑性摩擦系数的影响。
短句来源
     Internal friction of hydrogenated Ti, Ti-6A1-4V, Ti-5Al-2.5Sn and Ti-50Nb alloys in the range of 100 K to 350 K was measured.
     在100K到350K温度范围内,测量了含氢的Ti,Ti-6Al-4V,Ti-5Al-2.5Sn和Ti-50Nb合金的内耗。
短句来源
     that the average coefficient of friction of short fiber C/SiC, low density needle punched C/SiC and high density needle punched C/SiC composites are 0.28, 0.28 and 0.42, respectively;
     短切纤维C/SiC、低密度针刺C/SiC与高密度针刺C/SiC复合材料的平均摩擦系数分别为:0·28,0·28与0·42;
短句来源
     LOW FREQUENCY INTERNAL FRICTION OF LOW DOPED La0.82Sr0.18MnO3 COLOSSAL MAGNETORESISTANCE BULK MATERIALS
     低掺杂La_(0.82)Sr_(0.18)MnO_3巨磁电阻块材的低频内耗
短句来源
     When the mass fraction of M-UHMWPE was 5%, the coefficient of friction of POM/M-UHMWPE blend reduced from 0.32 of POM to 0.16, and the wear scar width of POM/M-UHMWPE blend was decreased from 5.00 mm to 3.56 mm.
     当M UHMWPE质量分数为 5 %时 ,POM/M UHMWPE共混物的摩擦系数从纯POM的 0 3 2降低到共混物的0 16,磨痕宽度从POM的 5 0 0mm下降为 3 5 6mm ;
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  friction of
Experimental Research on Friction of Vehicle Tire Rubber
      
Analysis of effect of different construction methods of piles on the end effect on skin friction of piles
      
Based on the comparative analysis of end effect on skin friction of displacement-pile (driven pile), the end effect on skin friction of bored pile is studied.
      
The end effect on skin friction between driven pile and bored pile is different and the end effect on skin friction of bored pile is reduce of skin friction in the soil layer adjacent to the pile end.
      
The concept of additional mud cake formed by the effect of cushion at the bottom of borehole during pouring concrete is introduced to explain the mechanism of end effect on skin friction of the bored pile.
      
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Detailed theoretical investigations on the nature of internal friction of linear type have been made by Zener and others. It appears that their results are not systemmatic enough owing to the lack of generality. In particular, very little has been attempted to the illucidation of the nature of mutual interactions due to causes which give rise to internal friction.

甄纳等对线型内耗的计算曾作了一系列的研究。但是其所考虑的内容缺乏系统性。特别,当有着数个因素交互作用时,所得的结果是不够普遍的。本文试用一般的热力学不可逆的线型理论,应用了玻耳兹曼叠加原理,整理出一个较全面的有系统的普遍线型内耗理论。一般地,所得结果和普通的理论是相符合的,但是在交互作用问题上就有着差异。最近的内耗的研究上又逐步地进入反常内耗的研究。因此研究交互作用成为必要的了。可以指出,利用类似的理论和方法,有可能创造出反常效应及振幅效应的非线性的一般的内耗理论,为分析这些实验数据的工具。

The purpose of the present article is to calculate the internal friction of binary substitution-al alloys in different states of order by the application of the general thermodynamical theory of internal friction of linear type. To begin with, free energies are deduced for specimens under the action of a uniform stress, which, so far as the degree of order is concerned, is not in equilibrium. In this paper two mechanisms, the preferential distribution of atom-pairs and the change of degrees of short...

The purpose of the present article is to calculate the internal friction of binary substitution-al alloys in different states of order by the application of the general thermodynamical theory of internal friction of linear type. To begin with, free energies are deduced for specimens under the action of a uniform stress, which, so far as the degree of order is concerned, is not in equilibrium. In this paper two mechanisms, the preferential distribution of atom-pairs and the change of degrees of short range order that give rise to the internal friction are suggested. In either case the internal friction is found to be proportional to the first and second power of (1-S), where is the degree of long range order. Thus, in the state of complete order, the internal friction would vanish, whereas it would be a maximum in the state of complete disorder. Theoretical results are in perfect accord with Nowick's data for the complete order in the Ag-Zn alloys and with the work of the Artman for the ordered states of β-brass. However, according to the theory, these experimental findings seem to indicate that it is the ordering pairs rather than the change of short range order that appear to be the cause of these two internal friction peaks.

本文是利用热力学线型内耗的理论来计算二元代位合金在各种有序状态时的内耗。首先,求出了在一个均匀应力作用下,样品中所产生的非平衡的有序无序的自由能,文中又介绍了原子对从优取向和短程有序的变化等两种内耗的机构。在这两种情况中,内耗都是正比于(1-S)的一次幂或二次幂的,这里S是长程有序程度。所以一定温度下在完全有序的状态时内耗不出现,而在完全无序状态时内耗最大。理论的结果是和诺维克的AgZn合金无序内耗的数据,以及亚特曼的β-黄铜有序内耗的数据完全符合的。并且还可以明了这些实验所测得的内耗峰是由于原子对从优取向所产生的,不是由于短程有序变化的原因。

The acoustic internal friction of iron vibrating transversely in a steady magnetic held was measured by means of Rochelle salt (NaKC_4H_4O_6 ·4H_2O) crystal plates, the frequency of vibration used was 1633 cycles/sec. When the strength of the magnetizing field is lower than 40-50 oersteds, the curve showing the dependence of internal friction on magnetic field strength is almost flat, and becomes steeper for a higher field strength. However, as the field intensity exceeds 150 oersteds or so, the...

The acoustic internal friction of iron vibrating transversely in a steady magnetic held was measured by means of Rochelle salt (NaKC_4H_4O_6 ·4H_2O) crystal plates, the frequency of vibration used was 1633 cycles/sec. When the strength of the magnetizing field is lower than 40-50 oersteds, the curve showing the dependence of internal friction on magnetic field strength is almost flat, and becomes steeper for a higher field strength. However, as the field intensity exceeds 150 oersteds or so, the change of internal friction with field strength becomes slower again, and finally approaches to a maximum value. This maximum value of internal friction does not decrease under a saturation magnetic field. Such a phenomenon has not been observed before.

用罗谢耳盐(NaKC_4H_4O_6·4H_2O)压电晶片测量铁在稳定磁场中作横振动时的内耗,所用的振动频率是1633周/秒。当磁场强度小於40—50奥时,内耗随着磁场强度而变化的曲线几乎是平的,其后则变化较快,在超过约150奥时,内耗的变化又渐越平缓,最后达到一个差不多恒定的最大值。这个内耗最大值在饱和磁场强度下并不降低,这种现象是以前所没有观察到的。 根据初步的分析,认为所观察到的内耗舆铁磁性物质在磁场中作横振动时磁畴的磁化向量的转动有密切关系。铁中的磁畴的磁化向量由於试样的弯曲而随着转向,但是外加磁场的作用却要使它们转(冂巳)到舆磁场方向一致。通过磁致伸缩的作用,磁畴的转动引起试样的附加应变。这种磁性现象舆弹性现象之间的耦合过程需要一定的时间,因而造成一种应变落后於应力的情况,在周期性应力的作用下便引起内耗。

 
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