无应力的

词组短语

stress free

与无应力的相关的网络例句 [注：此内容来源于网络，仅供参考]

Femoral stress has been studied by electrometric experimental stress analysis methods to know about femoral stress value and its distribution case in front and rear of replacement to artificial femoral head.

结果表明：股骨内外侧应力大于前后侧应力；人工股骨头置换术后股骨头近端应力明显下降；在使用骨水泥固定后，股骨上各点应力无大的变化，而当使用带颈领的人工股骨头时，股骨头近端应力下降受到抑制。

Firstly, the equation for stress intensity factors under static uniform pressure is used as the reference case, and then the weight function for a thick-walled cylinder containing a radial edge crack can be worked out. Secondly, the dynamic stresses in uncracked thick-walled cylinders are solved under internal impulsive pressure by using mode shape function method. The solution consists of a quasi-static solution satisfying inhomogeneous boundary conditions and a dynamic solution satisfying homogeneous boundary conditions, and the history and distribution of dynamic stresses in thick-walled cylinders are derived in terms of Fourier–Bessel series. Finally, the dynamic stress intensity factor equations for thick-walled cylinder containing a radial edge crack subjected to internal impulsive pressure are given by dynamic weight function method.

首先采用静态内压下的应力强度因子作为参考解，得到了带径向边裂纹厚壁圆筒的权函数；然后用振型函数方法推导无裂纹厚壁圆筒在冲击内压下的动应力响应，分析中将相应的弹性动力学方程解分为满足非齐次边界条件的准静态解和满足齐次边界条件的动态解的叠加，利用傅立叶-贝塞尔级数展开，推导出了厚壁圆筒内动应力的响应历程和分布规律；最后由动应力权函数方法导出带径向边裂纹厚壁筒在冲击内压下的动态应力强度因子计算公式。

In another cadaveric study, Adams and Hutton58found that the lumbar facet joints resist approximately16% of the intervertebral compressive force when standing erect versus near 0% when sitting, which helps explain the high intra discal pressures during unsupported sitting.59 Finally, after conducting in vitro experiments measuring induced loads on cadaveric lumbar facets, Lorenz et al.60 concluded that with increasing compressive loads, the absolute facet loads increases only slightly, so that the proportion of the axial burden borne by the l-z joints actually decreases with increasing stress.

另一项尸体标本的研究中，Adam和Hutton发现，当直立站立时，小关节承担了逐渐压力的近16%，而坐位时进0%，这解释了为什么在无支持的坐位时椎间的压力非常高。最后，Lorenz在尸体标本加载负荷后测量小关节的应力后，认为增加压力负荷时，小关节间的应力仅轻微增加，因此在轴向负荷中，小关节承担的比例实际随着应力的增加而减少。

In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1～0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.

本文采用三维有限元浮动网格法仿真计算程序，对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析，对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析，在此基础上提出了推荐的施工方案；根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案；玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果，对推荐的施工方案进行了温度场和温度徐变应力仿真计算，并对比分析了两种不同骨料情况下的温度场和温度应力，结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求，且灰岩细骨料优于玄武岩细骨料；计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响，夏季蓄水方案与冬季蓄水方案相比，坝体上游变态混凝土区域最大拉应力小0.1～0.3MPa，其他部位最大拉应力无明显变化，夏季蓄水对坝体上游面混凝土的抗裂有利；根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施，对大坝的设计温控措施进行了综合评价，并提出了该工程的温控措施，对温控设计和优化施工方案具有重要参考价值。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能，且合金内的V元素会向表面富集，因此，钛合金真空热处理和表面涂层的烧结温度不能过高，即应低于其相转变点；通过对生物活性梯度涂层的组成和结构的设计，分析和计算了梯度涂层内的应力大小和分布，结果表明：对于本研究，当成分分布系数n=1.5时，可以获得较合理的涂层力学性能，即在沉积开始时，采用富含BG颗粒的悬浮液，以便在钛合金侧获得同底层BG有良好过渡的富BG涂层；梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定，改变成分分布系数，只能改变涂层内应力变化的趋势；涂层的厚薄不影响涂层内的应力分布规律，但涂层越薄，涂层内的应力变化越快，但这并不意味着涂层越厚越好，因为涂层越厚，涂层允许的变形越小，对于应用于弯曲受力部位的涂层而言，涂层应薄一点为好(50μm)；而对于仅纯受剪切应力的部位，如牙根种植体，涂层可适当加厚(80～100μm)；通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现，它们在水溶液体系中很难发生电沉积；在无水乙醇溶液中，HA颗粒带正电，可在阴极钛合金片上发生均匀的电泳沉积，而BG颗粒则带负电荷；利用复分解反应法，可以制得100～300nm的HA，通过诱导HA在BG颗粒表面结晶，可对BG颗粒进行表面包覆，获得了被HA包覆的BG颗粒，改变了BG颗粒表面的带电特性，使BG和HA颗粒在无水乙醇中均带上正电荷，从而实现了HA和BG颗粒在阴极上的共沉积。

With this method,controllable,clean,tensionless nano-contacts for spin polarization probing can be obtained.

该方法采用聚焦粒子束刻蚀和磁控溅射，可以获得可控的、干净的、无应力的纳米接触用于自旋极化探测。

After verification of the program, the mathematical models of the suspension bridges were studied by means of the program, as well as the determination of the main cable's shapes and its internal forces at different stages, the calculation of the cable's unstrained length and the analysis of the construction processes, of which some new approaches were presented in the mean time. Thus makes the structural analysis results of suspension bridges more reliable and in accordance with reality.

在用算例验证了程序分析结果正确性的基础上，应用该程序对悬索桥的数学模型、各阶段缆索几何形状及内力状态的确定以及缆索无应力长度的计算和施工过程分析进行了研究，提出了确定缆索在成桥状态下的几何形状及其内力状态以及缆索无应力长度计算的新方法，使悬索桥的结构分析结果更加符合实际情况。

Took Sanchaji suspension bridge in Changsha as a case study, based on different hypothesis, two methods were deduced, the parabola method of cable gravity distributing uniformly along the span, and the catenaries method of gravity distributing equally along the curve.

以长沙市三汊矶湘江大桥为工程背景，对自锚式悬索桥的主缆线形及无应力长度的计算方法进行了研究，推导出两种基于不同假定下的主缆线形及无应力索长的计算方法：假定主缆自重沿跨径均布的抛物线法和假定主缆自重沿弧长均布的分段悬链线法。

Refers to operations of electrical contacts to permit a stress-free spring action to develop contact pressure, i. e., used in sockets of printed-circuits and in many other types of connectors.

使一个无应力的弹簧作用电触点产生接触压力的操作，即印刷电路的插口和许多其它类型的接插件中所用的情形。

A+bx+cy , X=0, Y=0 It satisfies the compatibility equation 4 φ=0 find the stress components by σx=2φ/y2=0 σy= 2φ/x2=0 τxy=-2φ/xy=0 find the surface force components bys=X=0s =Y=0 σστ a linear stress function corresponds to the case of no surface forces and no stress .

a+bx+cy ， X=0 Y=0 满足相容方程 4 φ=0 由下式求出应力分量σx=2φ/y2=0 σy= 2φ/x2=0 τxy=-2φ/xy=0 由下式对给定坐标的物体求出面力分量s=X=0s =Y=0 σστ确定所设定的φ能解决的问题为：任意物体无确定所设定的能解决的问题为：体力，无面力，无应力。

与无应力的相关的网络解释 [注：此内容来源于网络，仅供参考]

stressless：无应力的

stressed membrane 拉紧薄膜 | stressless 无应力的 | stressless deformation 无应力变形

stressless deformation：无应力变形

stressless 无应力的 | stressless deformation 无应力变形 | stressometer 应力计

unstrained member：无应力件

unstick 起飞 | unstrained member 无应力件 | unstrained 未形变的

unstressed：无应力的

unstress state 无应力状态 | unstressed 无应力的 | unsupported length 跨距

unstressed length：无应力索长

unstressed length相关词的翻译: | 无应力索长:Unstressed Length | 无应力索长:unstressed cable length

unstriated：无纹的

unstressing 无应力 | unstriated 无纹的 | unstriatedunstriped 无横纹的

unstriated：无纹的 无横纹的

unstressing /无应力/ | unstriated /无纹的/无横纹的/ | unstring /把弦解下[放松]/

casehardened：经过热处理变硬的, 无感觉的, 厚脸皮的

caseharden || 使无情, 使表面硬化 | casehardened || 经过热处理变硬的, 无感觉的, 厚脸皮的 | casehardening stress || 表层硬化应力

free of slags：无渣的

free of oil 无油的 | free of slags 无渣的 | free of stress 无应力的

stress free：无应力的

stress fluctuation in creep 蠕变应力起伏 | stress free 无应力的 | stress freezing 应力冻结