变化点

Through the establishment of the eight-node hexahedral elements describing continuous variation of the thickness of adjacent elements, the involved nonlinear anisotropic elasto-plastic material model, the control strategies of the dynamic load of trajectories and so on, the FEM model of SPIF was reasonable planed.

通过建立能够描述邻接单元厚度连续变化的八节点六面体实体单元、涉及材料各向异性的非线性弹塑性材料模型、和工具头运动轨迹动态加载的控制策略等数值模拟中的关键性问题，对适用于金属板材单点渐进成形数值模拟分析的有限元模型的建立进行合理规划。

In SPIF process, the loading trajectory is complex and long, the thinning of the sheet thickness is dramatic, and the local deformations are accumulated. So, there are some difficutis in the numeriacla simulation of SPIF. For example, the modeling of SPIF is difficult and the computational efficiency is low.

金属板材单点渐进成形由于自身的特点，如成形过程载荷加载轨迹复杂且长、板材厚度的剧烈减薄变化、以及局部变形累积等，使得对其进行有限元法数值模拟存在建模难度大、计算效率低等难点问题。

Based on the 1T15M-2 reversible sleeve air spring made by Firestone Corp., an air spring with auxiliary chamber was built. The character of the air spring in vertical direction was described as a linear spring damper element. Using the method of free vibration with damping, the changing rules of the stiffness and damping under different pressure in the air spring with the change of throttle orifice diameter have been studied experimentally.

以美国凡士通公司的IT15M-2型膜式空气弹簧为基础，构建带附加空气室的空气弹簧，将带附加空气室空气弹簧简化为由并联线性弹性和线性阻尼组成的垂直弹性元件，采用单质点自由衰减振动的方法，试验研究不同空气压力下弹簧垂直刚度和阻尼随节流孔孔径变化的规律。

In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.

本文中将上述理论方法成功地应用到故障诊断中去，提出了几点创新性的诊断方法；提出了一种齿轮磨损故障诊断的新方法，该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断，并通过与传统的频域诊断方法的比较，揭示出齿轮振动中存在的明显的非线性与非平稳特征，说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果；提出了一种轴承故障诊断的新方法，该方法利用ATVFD分解与Hilbert变换进行包络解调，并对解调得到的包络信号进行时频域分析，可以实现更加准确轴承故障诊断，说明了故障对载波信号的调制往往也是非平稳与非线性的；提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法，柴油机汽缸压力的变化是柴油机故障诊断的重要参数，利用振动方法可大大简化汽缸压力的检测过程，该方法也是综合利用ATVFD分解与时频域分析方法实现的。

The result showed that with the aquaculture industry and cabbage processing industry development, karst water environment has been undermined, and the indicators in the water are rapid deterioration, especially Longdong Bay point, just five months, the great changes have taken place.

结果表明，随着养殖业和榨菜加工业的发展，岩溶水环境遭到破坏，水中各项指标都在急剧恶化，特别是龙洞湾点，短短5个月就发生了很大的变化。

In this thesis, the influence of column force, joint hoop reinforcement, and repeat load on the stress and sheer bearing capability of inclined pressure bar is analyzed utilizing finite element software. In the case study, the column axial force's influence on the inclined pressure bar's equivalent width, stress and sheer bearing capability of RCFEN is obtained by changing the column force when modeling the RCFEN with ANSYS. In the former model, the joint hoop reinforcement influence on the equivalent width inclined pressure bar and the strength of RCFEN is achieved by changing the quantity of joint hoop reinforcement; the inclined pressure bar's equivalent width and the strength variation of RCFEN under cyclic load are gained by applying low frequency cyclic load on the inflection point of column and the middle of beam.

针对上述算例中的框架外节点采用ANSYS进行建模，运用有限元软件分析了柱轴力、节点箍筋、反复荷载对外节点斜压杆承载力、抗剪承载力的影响：改变柱轴力，研究了柱轴力对斜压杆的等效宽度、框架外节点斜压杆承载力、框架外节点斜压杆抗剪承载力的影响；在上述模型中，改变节点箍筋的数量，分析了节点箍筋对斜压杆的等效宽度、框架外节点强度的影响；在上述模型中，在柱反弯点和梁中点均进行低周反复加载，讨论了在反复荷载作用下，框架外节点的斜压杆的等效宽度、框架外节点强度的变化情况。

Popular variations including Partners, Cutthroat, Bid Euchre, British, and many others are just a click away.

热门的变化，包括合作夥伴，割喉式，买入Euchre ，英国和许多其他国家都只是一个点击即可。

In the end of this thesis, the data independent detection model of exchange ratedata stream is built. Then, the algorithm provided in this thesis is used on the model to solve the problem of detecting the abnormal data block in exchange rate data stream. Experimental data are also provided.

最后，本文根据实时汇率数据流的特点，建立了数据点相互无关的实时汇率数据流的检测模型，然后采用本文提出的数据流的变化检测算法解决实时汇率数据流的异常检测问题，并给出了实验结果。

Except, it may be, by raising a few sepulchral mounds, such as those which still, here and there, break the flowing contours of the downs, man's hands had made no mark upon it; and the thin veil of vegetation which overspread the broad-backed heights and the shelving sides of the coombs was unaffected by his industry.

而且这点跟你说的&忠实于原作意思&其实并不矛盾，相反我认为正是因为需要先理解再翻译，才最忠实原作意思，如果象翻译机器那样，连语序都不变化，词的含义也是胡乱往上硬套，表面上倒是忠实了，可有谁能看得懂，这种&文本忠实&才是最大的不忠实。

However, the only thing that keeps me wondering in the sample version is the buckle on tongue…and you even can see that it has been changed as the buckle design similar to the tongue of AJ5.5(which I believe comes from AJ6 prototype idea). Furthermore, the invisible eyelets design on sample version might also bring you troubles when you wanna change your laces, but fortunately, it has been improved on general release.

而鞋舌变化更大， sample版本上的钮扣唯一功能就是让人一头雾水，市售版的鞋舌钮扣设计更改成类似5.5的开放式隐藏鞋带设计，除此以外， sample版的封闭式的鞋带隐藏设计也会对鞋带更换造成困扰，这点看来在市售版上也获得了改善。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。