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小载荷
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  small load
     Design of Small Load Sliding Reciprocating Friction Testing Experimental Platform
     小载荷下滑动往复摩擦测试平台的研制
短句来源
     A small load sliding reciprocating friction tester was developed and its principle and structure was described.
     描述了自行研制的小载荷下滑动往复摩擦测试平台的工作原理。
短句来源
     Determined of work hardening exponential of 18-8 type Austenite stainless steels with small load HV.Work hardening exponential is 0.418 of 18-8 type Austenite stainless steels.
     利用小载荷维氏硬度,借鉴用拉伸方法确定应变硬化指数的原理,测定了奥氏体不锈钢的强度系数K和应变硬化指数n。 测得18-8型不锈钢应变硬化指数为0.418。
短句来源
  small loads
     STUDY ON DETERMINING CRITERION FOR OMISSION OF SMALL LOADS
     关于确定小载荷取舍标准的研究
短句来源
     Simulations of the cornering properties for different vertical model prediction accuracies show that for small loads,the nonlinear sidewall compliance has little effect on the vertical properties and cornering characteristics,but for large loads,the nonlinear sidewall compliance greatly affects the cornering property predictions with the maximum cornering stiffness error decreasing from -18.7% to -11.4% compared to test results.
     结果表明:小载荷时胎侧非线性柔度对垂直特性和侧偏特性结果影响很小; 大载荷时,胎侧非线性柔度对侧偏特性预测有较大影响,侧偏刚度预测的最大误差由-18.7%降至-11.4%。
短句来源
     By experiment and theoretic analysis,the present paper studied the criterion for omitting small loads in the random fatigue loads,and the influence of interactive and sequential effects among the loads on the fa- tigue damage.
     通过试验和理论分析,研究了随机疲劳载荷的小载荷取舍标准、载荷之间的相互作用效应和顺序效应对疲劳损伤的影响。
短句来源
     P superposed on the top of ? P, although the results at an anodic potential did not show much difference from that in air, the small loads with amplitude of zero could accelerate crack growth. The effect of T0 was greater than that of B0.
     虽然阳极溶解对主载荷顶部的幅度为30%ΔP(T30)和70%ΔP(T70)的小载荷作用的影响不太明显,但幅度为零的顶部小载荷(T0)能明显促进裂纹扩展,其加速作用大于在主载荷底部叠加的情况B0,小于持续加载的常幅疲劳过程.
短句来源
     And by relative Miner law, the damage quantity made by the small loads omitted can be compensated still.
     并且,还可以利用相对Miner法则,对舍掉的那些小载荷所产生的损伤进行补偿。
短句来源
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  “小载荷”译为未确定词的双语例句
     Preparation and Friction Properties of Ti/TiN and Ni/TiN Multilayered Films
     Ti/TiN和Ni/TiN多层膜的制备和小载荷下摩擦性能研究
短句来源
     The wear -resistant test indicated that the loss in volume increased at high speed and heavy loading conditions for B 4C/(W,Ti)C ceramic composites.
     磨损实验表明 ,B4 C/(W ,Ti)C陶瓷材料在低速小载荷的实验条件下 ,耐磨性能优异 ,在高速大载荷的实验条件下 ,磨损过程中局部点的高温导致试样表面发生氧化 ,加剧了材料的磨损
短句来源
     Under low load, the minimum volume of adhesive was 35mm3, which accounted for 28% of the volume of continuous joint.
     小载荷(3KN)作用下胶粘剂的用量为35mm3,仅为连续胶层情况的28%,间隙对增加接头的经济性有着重要的作用。
短句来源
     Empirical Method For Ascertaining P-S Curve of Large Compound Foundation with Small Load-plate Test Data
     采用小载荷板试验资料推求大型复合地基P~S曲线的方法
短句来源
     The change of contacting load (5-70 mN) only result in slight decrease of friction coefficient.
     在小载荷(5~70 mN)作用时,载荷变化对摩擦因数的影响较小。
短句来源
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  small load
The possibility of nonimpact tension of a cable after its weakening when a small load moves along the cable whose ends are fixed on a massive dumbbell-like spacecraft which is moving in a steady-state manner along a circular orbit is considered.
      
These response properties may provide discrete signals that either modulate excitatory extensor drive during small load variations or inhibit support prior to compensatory stepping or initiation of swing.
      
In order to prevent the occurrence of very small load steps a second internal and homothetic to the initial yield surface is implemented which creates a plastic zone for the activation of the plastic modes.
      
A precise estimate of the amplitude parameter, valid at sufficiently small load intensities, is deduced with the aid of a known conservation law.
      
It is found that under sufficiently small load, the speed of crack growth decreases as time increases, and crack arrest occurs finally.
      
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  small loads
The former factor is significant in the case of small loads.
      
It is demonstrated that only the hardness parameters remain constant at small loads (5-30 mN).
      
It is established that, at small loads, the surface is smoothed out much as a crumpled sheet of paper is smoothed out under tension.
      
The wear characteristics are improved in the whole range of loads investigated, while the antifriction properties, only at small loads.
      
Half of the F1 seeds were produced by depositing small loads of C.
      
更多          
  little load
Because of its freedom to roll, each ball transmits very little load through friction.
      
Essentially, gateways with low thresholds only allow access to the network when there is relatively little load upon the network.
      
It is suitable for applications with high security demands, and poses very little load on the network and the receivers.
      
Indeed, near the last gage, very little load is actually on the far end cap before ignition.
      
Since very little current flows for the detection, and very little load is lost, it is difficult for any HIF detector to sense the event.
      
更多          


For ultra-high strength steel and aluminum alloy , a fatigue crack could initiate from a notch tip under a cyclic compressive load. The th-resholp value Δzσth or ΔKth(ρ) for fatigue crack initiation under a compressive load was four times as high as that under tensile load . The crack grew at a decreasing rate until eventually it stopped growing under cyclic compressive load and the maximal length of the fatigue crack was only 0.2-0.5mm. The crack nucleation under comdressive stress became easier and the propagation...

For ultra-high strength steel and aluminum alloy , a fatigue crack could initiate from a notch tip under a cyclic compressive load. The th-resholp value Δzσth or ΔKth(ρ) for fatigue crack initiation under a compressive load was four times as high as that under tensile load . The crack grew at a decreasing rate until eventually it stopped growing under cyclic compressive load and the maximal length of the fatigue crack was only 0.2-0.5mm. The crack nucleation under comdressive stress became easier and the propagation distance of the fatigue crack was longer if the mimimum cyclic compressive load was near zero.

对超高强钢和铝合金的研究表明,在压—压交变载荷下缺口前端能引发疲劳裂纹,但其门槛值比拉应力高三倍。压应力下缺口裂纹长到一定尺寸(如0.2~0.5mm)后就将停止扩展。如果压应力的最小载荷(绝对值)接近零,则裂纹容易形成(门栏值和拉应力相近),且能扩展较长的距离。

The oil film thickness between surfaces of tip relieved involute spur gears is analyzed with hydrodynamic lubrication theory. An expression for fingding pressure distribution in taking into account the influences of rolling, sliding and squeezing velocities, viscosity variations and the actual pairs of mating is derived. Under light or moderate loads, with the help of numerical method, plots of oil film thickness and pressure distribution of the tip relieved involute spur gears are obtained. The relaion between...

The oil film thickness between surfaces of tip relieved involute spur gears is analyzed with hydrodynamic lubrication theory. An expression for fingding pressure distribution in taking into account the influences of rolling, sliding and squeezing velocities, viscosity variations and the actual pairs of mating is derived. Under light or moderate loads, with the help of numerical method, plots of oil film thickness and pressure distribution of the tip relieved involute spur gears are obtained. The relaion between the oil film thickness and the the relieved amount and a series of transient characteristics are also obtained. The author measures the oil film thickness experimentally by the 'displacement method'.

本文用流体动力润滑理论分析了渐开线圆柱直齿修缘齿轮齿面间的油膜厚度。在求解时考虑了滚动速度、滑动速度、挤压速度,润滑油粘度的变化、以及每一瞬间真实的啮合齿数等因素的影响,并导出了压力分布的表达式。在中小载荷的情况下,用数值计算方法求得了渐开线直齿修缘齿轮的油膜厚度变化曲线和压力分布曲线。得到了油膜厚度和修缘量之间的关系以及一系列动态特性。作者用实验验证了理论计算的油膜厚度,在实验中,油膜厚度的测定采用了“位移法”。

Fatigue-crack initiation and growth was investigated by testing an ultra-high strength steel and Al alloy using a notch specimen under cyclic compressive load. Results showed that the fatigue-crack initiation and growth is started from the notch tip and its threshold value △σ_(th) or △K_(th)(ρ) is about 4 times the magnitude of that under tensile load. The crack growth could propagate at a decreasing rate and stop eventually until such length as 0.2—0.5 mm. The threshold value △K_(th)(ρ) under cyclic compressive...

Fatigue-crack initiation and growth was investigated by testing an ultra-high strength steel and Al alloy using a notch specimen under cyclic compressive load. Results showed that the fatigue-crack initiation and growth is started from the notch tip and its threshold value △σ_(th) or △K_(th)(ρ) is about 4 times the magnitude of that under tensile load. The crack growth could propagate at a decreasing rate and stop eventually until such length as 0.2—0.5 mm. The threshold value △K_(th)(ρ) under cyclic compressive load would be identical with that under cyclic tensile load and the fatigue-crack could continue to propagate if the minimum cyclic compressive load is near zero. The dα/dN under compression-zero fatigue, however, is 10 to 100 times smaller than that under tensile fatigue.

对超高强度钢和铝合金的研究表明,在压-压交变载荷下缺口前端能引发疲劳裂纹,其门槛值比拉应力高3—4倍。压应力下缺口裂纹长到一定尺寸(如0.2—0.5mm)后就将停止扩展。如果压应力的最小载荷(绝对值)接近零,则裂纹容易形核(门槛值和拉应力相近),且能扩展较长的距离。

 
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