查询词典 damping

At present, in a tipper, the unloading device is separated from the controlling mechanism for damping. As a result, a driver is hard to control the wagon box's sudden rising resulted from bump and shake during the transport, as well as hard to control the accidents such as the wagon box breaks off the tipper, breaks aerial line, breaks pipeline and knocks into bridge opening for a driver forgot to put down the wagon box after he has discharged and meanwhile the car is running.

但由于目前自卸汽车的自卸机构和制动控制机构是二个独立、互不相联的部分，因而司机很难控制车辆在运输过程中由于颠簸和震动引起的车斗意外升起，或者在司机卸完货物忘记把车斗降落，车辆仍可继续行驶，从而导致自卸车的车斗挂掉、挂断架空线路、架空管道或挂上桥洞等事故的发生。

Second, the equivalent bulk modulus of elasticity of brake cylinder and brake line are derived out, the lumped parameter model of brake line is developed, the dynamic performance of the model are analyzed, the effect of physical and geometric parameters on natural frequency and damping are studied.

其次，计算出制动器的刚度以及轮缸与管路的等效体积弹性模量，采用集中参数分析法，建立了制动管路的理论模型，分析了该模型的时域与频域特性，研究了制动管路及制动器参数对动态特性的影响。

Employment of high-damping steel plate and special construction give our brake low-noise capability. The brakes are ''fail safe'' brakes,i.e.,when the electrical power is off ,the spring sets the brake.

高阻尼钢板的使用和特殊结构可以充分保证我公司生产的制动器具有较低的噪音，我公司生产的制动器还带有&故障安全&制动功能，例如在电源被切断的情况下，弹簧使制动器自动制动。

Compared with confined clay brick wall, equivalent viscous damping coefficients is improved by 37 percent and shear loading capability by 25 percent.

与约束烧结粘土砖墙相比，等效粘滞阻尼系数提高37%，受剪承载力提高25%。

First, this paper presents three girders model with double cable planes which main girder and side girder is connected by rigid arms, analyzes the dynamic characteristic of Yonghe cable-stayed bridge and obtains its natural vibration modes (i.e., frequency, damping values and the mode shapes ) by ANLSIS structural analysis program and uses these parameters as dynamic dactylogram of the intact case of cable-stayed bridge. Using the passage of random as the ambient vibration ,the dynamic properties of Yonghe Bridge is measured and the modal parameter of its 15 years after is identified and used as dynamic dactylogram of the damaged case. By the finite element analysis and locale vibration test, damaged and undamaged modal parameter is analyzed and curvature mode shape, which is sensitive to damage state, is introduced as possible candidate for identifying and locating damage in the cable-stayed bridge. Selecting the branch of part measured point from modal parameter, this paper deduces the damaged index which can detect the possible damaged location of the cable-stayed bridge deck and identifies the damaged region and degree for Yonghe Bridge. For the purpose of structural condition monitoring in in-situ , from another viewpoint, this paper introduces the method called the best optimization vector to detect damaged location and degree. The accuracy and reliability of the method presented in this paper are demonstrated by static analysis and test and the healthy state of Yonghe Bridge can be evaluated.

建立了双索面通过刚臂与主梁及边梁相连的三梁式力学模型，采用ANSYS结构分析程序对永和斜拉桥进行动力分析，对其振动模态参数进行识别，以此作为斜拉桥完好状态下的动力&指纹&；采用自由交通流作为环境振源，对永和斜拉桥动力特性进行测试，识别出永和斜拉桥使用15年后的模态参数，确立了破损状态下的动力&指纹&；利用有限元分析、现场振动测试，对破损前后的模态参数进行分析，提取对破损状况较敏感的模态曲率作为斜拉桥破损诊断的参数；并从模态参数中选取部分点的分量，导出可以指示斜拉桥桥面大概损伤位置的Index损伤指标，识别出斜拉桥发生破损的区段及破损程度；考虑大型斜拉桥在线监测要求识别破损的具体位置，从另一角度提出采用最优矢量法具体确定破损发生的位置及程度；为验证本文研究成果，对永和斜拉桥进行静力分析及静力测试，对其健康状况提出可靠的评价。

With the span of cable-stayed bridge and the length of stay cable become longer, viscous damper may not provide sufficient damping value to reduce the cable vibration.

随著斜张桥跨度的增加，斜张钢缆的长度也愈来愈长，黏滞性阻尼器所能提供的阻尼比也会相对减少。

Methods The circular spring buffer is adopted with throttling bar as damping device.

采用环型弹簧与节制杆式阻尼器相结合的缓冲器原理。

The stationary flexible chute system for concrete-conveying is more convenient than the common chute because of its flexible,adjustable and negative-pressure damping behaviours,the end of this flexible chute is uneasily blocked up,and the aggregate of conveyed concrete is quite few separated;good application prospect of this chute system is expected.

固定式软管溜筒系统由于具有柔软可伸缩性和负压阻尼的特点，与普通的钢管溜管系统相比，具有不堵管、终端骨料分离较小的特点，是一种具有应用前景的新型混凝土运输手段。

Then the numerical simulation is developed with the above dynamic model. The effects of the clearance on the dynamic characteristics are studied in detail. The influence of factors such as clearance size, driving speed, stiffness, coefficient of viscous damping of contact surface, and the gravity are discussed and the quantitative results are given.

利用本文建立的动力学模型对含间隙三球销移动副的曲柄滑块机构进行了动力学数值仿真，研究了运动副间隙对机构的运动和受力状况的影响，考察了间隙大小、曲柄转速、接触刚度、阻尼、外力矩等对机构动态特性的影响规律，给出了定量结果。

Finally, a practical seismic analysis method is presented. Through a reasonable assumed distribution of lateral forces, the capacity curve can be derived from the story shear-displacement curves. And by using equations suggested by ATC-40, the corresponding capacity spectrum, period, damping ratio and PGA can also be obtained. This method can provide not only collapse PGA of a low-rise RC building structure, but also damage conditions of members at a specific PGA. Combining with the deterioration rule for RC column after multiple earthquakes, it can also be applied to seismic analysis for after-earthquake or aged buildings.

最后则提出一套适用於中低层RC建筑结构之实用耐震诊断法，依照合理假设之地震力竖向分配型态及ATC-40建议公式，可再将层剪力-层间变位曲线换算为基底剪力-屋顶位移能力曲线，并计算对应之等效周期、阻尼比与PGA，除可评估结构整体之崩塌地表加速度外，也可由特定PGA反推对应的构件破坏程度，亦可配合震后折损修正，应用於结构之震后与经年耐震评估。

Summary In copyright infringement cases,if the alleged infringer uses or even plagiarizes the copyrighted works or parts thereof,which causes no substantially adverse effect on the normal exploitation of the work,nor does it inflict any substantial damages to the right owner,the de minis doctrine should be applied to exempt the liabilities of the defendant and seek the balance of interests between the right owner and the general public embodied by the copyright law.

在侵犯著作权案件中，如果被控侵权行为人虽未经著作权人的同意，使用甚至抄袭了受著作权保护的作品或作品的片段，但若情节轻微，未对该作品的正常使用产生任何实质不利的影响，亦未对权利人的权利造成实质性的损害，则应适用&不计琐细原则&，免除行为人的责任，以寻求在权利人利益与著作权法所体现的社会公共利益之间的平衡。

This new product will become our best seller.

这个新产品会成为我们最畅销的产品。