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- The Natural Vibration Frequency were obtained by galerkin method and multiple-dimensioned method. 通过伽辽金方法和多尺度法求解,得到了悬索的各阶频率计算式。
- By the aeroelasticity theory and method,structure model with FEM,model correction,natural vibration calculation,flutter analysis were made. 新一代航空结构广泛采用复合材料,对复合材料机翼的气动弹性工程化建模和分析是飞机设计的重要任务。
- By the aeroelasticity theory and method, structure model with FEM, model correction, natural vibration calculation, flutter analysis were made. 应用气动弹性分析理论和方法，对复合材料大展弦比机翼进行了结构有限元建模、模型修正、固有振动特性计算、部件颤振工程分析。
- This article introducedes that a magnetic pendulum and a simple pendulum make a non-complete forced vibration system.It can be used to study nonresonant natural vibration. 用一永久磁铁构成的摆和一单摆一起组成一非完全强迫振动系统，它可用来观察、研究物体的非共振固有振动现象。
- It's only human nature to want a comfortable life. 想过舒适的生活不过是普通人的本性。
- Analysis of natural vibration of a pre-stressed solar panel shows that the gravity has significant impact on ground modal test if the panel is hung laterally. 通过分析预应力作用下太阳能电池板的固有振动,发现重力对侧向悬挂的电池板地面模态试验结果存在影响。
- Based on construction, construction craft and natural vibration properties of tensegrity tower, dynamic properties of a 30-meter high tensegrity tower and i. 张拉整体塔结构是张拉整体思想在实践中的一种应用,其受力合理、构造简洁、形式多样,目前仅用于雕塑小品。
- In view of the different raft structure, the finite element model of raft has been established, and the natural vibration characteristic and isolation effect are calculated using MSC/PATRAN. 针对不同的筏体结构，在MSC/PATRAN中建立浮筏的有限元模型，并且分析其固有振动特性、隔振效果，为隔振设计提供参考。
- All nature seemed pregnant with life. 整个大自然似乎充满了活力。
- In the case of invariable of outrigger belt and changing the vertical positional arrangement, the effect on structural inner force, natural vibration period and sidesway were discussed. 分析固定加强层水平伸臂的位置不变，改变环带的竖向位置，研究环带的竖向位置对高层框筒结构力学性能的影响。
- He knows nothing of the nature of my work. 他一点也不了解我的工作性质。
- The girl is of a confiding nature. 这女孩具有轻信别人的性格。
- According to the virtues of genetic algorithm and sensitivity algorithm,the two methods are mixed for natural vibration optimization and ordinal applied for flutter optimization respectively. 依据遗传算法和敏度优化算法的特点;针对固有振动和颤振优化设计的不同要求;将两种优化方法进行混合和递进应用;形成不同的优化设计方法.
- We enjoyed the beauty of nature. 我们欣赏大自然的美。
- By analysed on vibration theory we knew that the load js a static load in mechanics of materials, when the loaded time is 6-8 times as much than the natural vibration period of the unit of structure. 通过振动理论的分析得知;材料力学中静载荷的定量标准是:当加载时间为构件系统的固有振动周期的8倍以上时;这种载荷即可认为是静载荷.
- Firstly, the natural vibration properties of the bridge are respectively analyzed with the general software ANSYS and VBC program for train-bridge coupling vibration, both results are quite identical. 用通用软件ANSYS及车桥耦合振动分析程序VBC计算了该桥的空间自振特性。两者计算结果较为一致。
- Perhaps it is our human nature to be nostalgic. 也许是人类天生有一种思古之幽情。
- She had an eye for the beauty of nature. 她有鉴赏自然美的眼力。
- She hasn't much feeling for the beauty of nature. 她对大自然的美缺少鉴赏力。
- Dynamic characteristics of collaborated system mainly include natural vibration frequency and principal mode,which is the base and precondition of dynamic analysis for collaborated system. 协作体系的动力特性主要包括体系的自振频率和主振型,它是协作体系结构动力分析的基础和前提。
