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- 与 索 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Chenonceaux 舍农索 Chenonceaux is not large, but into its delicate compass is packed a great deal of history — history which differs from that of Amboise and Blois in being of the private and sentimental kind.
舍农索城堡不太大,但是在它的小巧之中却蕴含着大量的历史——这历史与昂布舍农索城堡不太大,但是在它的小巧之中却蕴含着大量的历史——这历史与昂布——瓦斯和布卢瓦截然不同,是隐秘的,充满情感的历史。
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And the effects of foundation displacement excitation,temperature,amplitude and asexternal damping on the nonlinear vibration of elliptic paraboloid cable net with the comparison between steel cable and carbon fiber cable were discussed.At last the conclusions are obtained that the temperature have great influence on steel cable and bat not on carbon fiber cable,and the vibration characteristics of cable net using carbon fiber cables is superior to cable net using steel.
在把碳纤维索网与钢丝索网比较的基础上,讨论分析了位移激励、温度、振幅、外阻尼等因素对椭圆平面双曲抛物面碳纤维索网非线性振动的影响,得到了碳纤维索网对温度变化不敏感,而钢丝索网受温度的影响却很大,且碳纤维索网振动特性优于钢丝索网振动特性的结论。
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The main research contents are stated asfollow: 1. Simplified analysis method of space grids structuresDouble-layer space grids have been assumed as sandwich plate, and are analyzed bythe nontraditional theory of plate with consideration of shear deformation and threegeneralized displacements. Using the theory of energy variation, simplified methodsfor bending, stability and vibration analysis of double-layer space grids have been putforward based upon the idea of split rigidity. The formulas for calculating internalforces, displacements, critical load and natural frequency have been given out. Set thestable cables and bearing cables in hyperbolic paraboloid cable nets are all replaced bytruss-cable to form truss-cable nets structures. Natural vibration analysis method fortruss-cable nets structures has been put forward using the energy variation method andRayleigh method.
主要内容包括: 1、空间网格结构静动力简化分析方法把网架结构简化为夹层板,采用考虑剪切变形的具有三个广义位移的平板弯曲理论进行分析,基于分解刚度思想利用能量变分原理提出了网架结构弯曲、稳定与振动分析的简化计算方法,给出了位移、内力、屈曲临界荷载和固有频率的计算公式;将双曲抛物面索网中的稳定索与承重索均用劲性索代替形成劲性索网结构,基于能量变分法和Rayleigh法给出了劲性索网结构固有振动分析的简化计算公式。
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Also the response amplitude will be changed with the initial conditions due to the nonlinear properties of the cables.Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco-elastic dampers in cable-stayed bridges is investigated by joining the center difference method and the state space strategy. Both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. The space nonlinear vibration equations of the cable-damper system are derived, and anew hybrid method for solving the cable-damper system is presented by combing the Newmark method and Pseudo-force technology. According to the known properties of the cable-damper system, the nonlinear transient responses are analyzed under all kinds of excitations. Based on the transient response, the control effectiveness of the visco-elastic dampers is further demonstrated.
综合考虑了拉索抗弯刚度、垂度的影响,研究了粘弹性阻尼器对斜拉桥拉索的空间振动控制,联合中心差分方法及状态空间法,得出了拉索面内、外振动各阶模态可能达到的最大阻尼比及相应的最优阻尼器系数,并对斜拉桥拉索的阻尼器设计提出了参考建议:考虑拉索抗弯刚度、垂度及几何非线性,导出了索-阻尼器系统的空间振动非线性方程组,结合Newmark方法及伪力(Pseudo-Force)方法,创新地提出了求解非线性方程组的杂交方法,根据拉索-阻尼器系统的阻尼特性,在各种荷载作用下,对索-阻尼器系统的非线性瞬态振动响应进行了研究,从系统响应的角度更加直接地验证了阻尼器的控制效果。
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This article female author had been equally all decided with "Life Life" by the life, when other country 21 years old has suffered from the withering spinal cord 侧索 scierosis, only can live for two years, but he tenacious has actually gone far beyond the others, he is unyieldingly upward, even if the destiny has decided his life, but he still let the limited life send out the infinite value, was responsible for oneself, for life struggle.
霍金,和《生命生命》这篇文章的女作者一样都被生命决定了,他国21岁时患上了萎缩性脊髓侧索硬化症,只能活两年,可他的顽强却远远超过了别人,他不屈地向上,即使命运决定了他的生命,但他仍让有限的生命发出无限的价值,对自己负责,为生命奋斗。
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Backstays, middle mast and downward tension ring, horizontal cable, and side cable, spinal cable, valley cable, suspended cable and antiwind cable assisting forming for membrane surface.
膜面支点系统为膜面提供张拉支点,包括外桅杆及背索、中桅杆及下拉环、水平索,以及辅助膜面成形的边索、脊索、谷索、悬索和抗风索等。
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Taking Changzhou Gymnasium as example,some emulation calculations of tension construction of cable-supported lattice shells have been analyzed,especially in the analysis of hoop cable tension method.
以常州体育馆索承网壳钢屋盖为例,对索承网壳预应力拉索施工方法中的环索张拉法进行虚拟仿真计算,分析了由于环索连接节点的构造处理及环索张拉点数量的不同对大跨度椭球形索承网壳预应力建立效果的影响,提出了适合该类结构的环索预应力张拉方法。
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Dynamic characteristics of Kiewitt cable-supported lattice shells ;2. Stability and static analysis of cable-supported lattice shells ;3. Taking Changzhou Gymnasium as example,some emulation calculations of tension construction of cable-supported lattice shells have been analyzed,especially in the analysis of hoop cable tension method.
以常州体育馆索承网壳钢屋盖为例,对索承网壳预应力拉索施工方法中的环索张拉法进行虚拟仿真计算,分析了由于环索连接节点的构造处理及环索张拉点数量的不同对大跨度椭球形索承网壳预应力建立效果的影响,提出了适合该类结构的环索预应力张拉方法。
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HONOR Essential Oil: Hyssop 31、尊重精油:海索草 Hyssop is an oil useful to the regeneration of the skin and is a good addition to the bath, homemade lotions or body oils as a result.
海索草是一种对皮肤再生有益的精油,故而也是一种加入沐浴、自制护肤液或护肤油中的很好物质。
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A detailed model of non-linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non-linearity are considered, is proposed in this paper. Based on several numeric examples investigated by the Galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. Another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived. The smallest excitation amplitude,the transient state and steady state resonance amplitudes, and the changing characteristics of the axial force are obtained by using harmonic balance method. According to numerical examples calculated by numerical integration method, the effects of the inner damping of the stay cables are investigated.
本文创新地提出了斜拉桥拉索-桥面耦合参数振动模型,推导了索-桥耦合非线性参数振动方程组,联合Galerkin法及数值积分方法,对各种特性的拉索进行了数值求解,得出了影响拉索参数振动的各种因素;提出了斜拉索受轴向端激励参数振动模型,导出了模型的非线性振动方程,使用谐波平衡法得出了产生参数振动需要的最小激励幅值、共振时瞬态及稳态的振动幅值及索拉力的变化特性,并用数值积分方法对实际斜拉桥拉索进行了计算,分析了拉索阻尼对参数振动的影响。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。