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damping
相关语句
  阻尼
    Experiment and Application Studies on Dynamic Shear Modulus and Damping of Geotechnical Media
    岩土动剪切模量阻尼试验及应用研究
短句来源
    Study on Analysis Method and Design Theory of Structures with Supplemental Viscous Damping
    粘滞阻尼减震结构分析方法及设计理论研究
短句来源
    The Research on Non-linear Damping Properties and Seismic Response of Reinforced Concrete Buildings
    钢筋混凝土建筑非线性阻尼性能及其地震反应研究
短句来源
    The Method of Energy Balance for Identifying the Damping Parameters of the Dynamic Model of Machine Structure
    机器构件动态模型的阻尼参数识别方法—能量平衡法
短句来源
    Influence of Pore Water Pressure on Shear Modulus and Damping Ratio of Saturated Sands
    孔隙水压力对饱和砂的剪切模量和阻尼比的影响
短句来源
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  减振
    Damping Effect of Reinforced Concrete Cladding Panels in Highrise Steel Structure Buildings
    高层钢结构房屋中钢筋混凝土外挂板的减振作用
短句来源
    Dynamic testing on spring damping foundation
    弹簧减振基础动态测试
短句来源
    The test analysis of the suspended structure damping parameter
    悬挂结构体系减振参数的实验分析
短句来源
    TUNNEL TEST ANALYSIS OF THE HIGH RISE SUSPENDED STRUCTURE DAMPING SYSTEM
    高层悬挂结构减振系统的风洞实验分析
短句来源
    Analysis of damping effect on vibration reduction of the aseismic structure
    抗震结构的阻尼减振效果分析
短句来源
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  减震
    Study on Analysis Method and Design Theory of Structures with Supplemental Viscous Damping
    粘滞阻尼减震结构分析方法及设计理论研究
短句来源
    Study on Seismic Damping for a Large Computer
    巨型计算机的减震研究
短句来源
    RESEARCH, APPLICATION AND DEVELOPMENT OF SEISMIC RESPONSE DAMPING CONTROL SYSTEM FOR STRUCTURE
    结构减震控制体系的研究、应用与发展
短句来源
    STUDY ON VIBRATION DAMPING PROPERTIES OF PENDULUM-STRUCTURE SYSTEM
    摆—结构体系减震性能研究
短句来源
    Study,application and development of energy dissipation and damping control
    耗能减震控制的研究、应用与发展
短句来源
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  “damping”译为未确定词的双语例句
    Research of Damping Spring of Vibration Hammer
    振动沉拔桩机振动锤隔振弹簧的设计
短句来源
    Employing the obtained optimum frequency spacing,damping ratio and tuned frequency ratio,the evaluation is then made on the MTMD-1-MTMD-5 stroke.
    利用求得的MTMD-1-MTMD-5最优频率间隔、阻尼比和调谐频率比,评价了MTMD-1~MTMD-5的冲程情况。
短句来源
    A New Type of Terminal Air Distributing Unit in Clean Space The Theory of Damping
    洁净空间新型气流分布末端——阻漏层的理论
短句来源
    Research on CT structure changing for damping process of loess in Longdong
    陇东黄土湿陷过程的CT结构变化研究
短句来源
    THEORY AND PRACTICE OF IMPROVING THE LARGE DAMPING RESISTANCE SUPPLYING WATER SYSTEM IN A FILTERING POOL
    滤池大阻力配水系统改造的理论与实践
短句来源
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  damping
A dynamic signal is introduced and adaptive nonlinear damping terms are used to restrain the effects of unmodeled dynamics, nonlinear uncertainties and unknown bounded disturbances.
      
Nonlinear optimal predictive controller for static var compensator to improve power system damping and to maintain voltage
      
The main objectives of this paper are to simultaneously improve power system damping and to maintain voltage at the static var compensator (SVC) location bus simultaneously.
      
The ideas of adaptive nonlinear damping and changing supply functions were used to counteract the effects of parameter and nonlinear uncertainties, unmodeled dynamics and unknown bounded disturbances.
      
The results, based on the dynamic properties calculation of a typical mechanical spiral seal, such as stiffness coefficients and damping coefficients, exert the influence of the mechanical seal on the rotor-bearing system of the high-speed machinery.
      
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The main subjects in relation to the earthquake resistant design of earth dams such as the determination of seismic forces acting upon earth dams and their foundations,the evaluation of dynamic properties of soils under seismic actions,the method of analysis of seismic stability of earth dams and the engineering measures in earthquake resistant de- sign of earth dams are reviewed systematically based on literatures and data which are available to the author. The works done by Matumura,Mononobe,Hatanaka,Ambraseys...

The main subjects in relation to the earthquake resistant design of earth dams such as the determination of seismic forces acting upon earth dams and their foundations,the evaluation of dynamic properties of soils under seismic actions,the method of analysis of seismic stability of earth dams and the engineering measures in earthquake resistant de- sign of earth dams are reviewed systematically based on literatures and data which are available to the author. The works done by Matumura,Mononobe,Hatanaka,Ambraseys and Napetvaridze on the dynamic theories of seismic forces of earth dams are specially reviewed,also the prevalent practices in USSR,Japan,America,etc.about the method of calculation of seismic forces of earth dams are mentioned. On the subject of dynamic properties of soils under seismic actions the stress-strain relationship,damping characteristic,shear strength and pore pressure of the soil and soil mass are discussed. Following a brief review of the methods of analysis of seismic stability of earth dams the paper presents a table compiling records of the seismic behavior of thirty two earth dams in several earthquake regions of the world.According to the actual behavior of earth dams at earthquakes the author calls attention to the designers how and why it is necessary and important to take special engineering measures in earthquake resistant de- sign of earth dams,even though many of those measures may be entirely empirical at present stage of our knowledge. Finally,the author recaptulates a few topics for further research and future develop- ment.

本文对土坝抗地震设计中有关地震荷载、土的动力性质、土坝地震稳定分析方法和防震工程措施等方面的问题,进行了综合论述.在土坝地震荷载方面,着重介绍了日本松村、物部和畑中,英国恩伯拉散斯(N.N.Ambraseys)和苏联那比脱伐列齐等人所做的工作,以及目前在苏联、日本和美国等土坝设计中关于士坝地震荷载估算方面的实际执行情况.关于土在地震动力作用下的特性方面,文中主要介绍和讨论了目前上坝地震动力分析理论中所采用的土的应力应变关系和阻尼问题,以及土坝地震稳定分析中所需考虑的土的抗剪强度和孔隙压力问题.关于土坝地震稳定分析方法和防震工程措施方面,文中在简单介绍了目前一般采用的土坝地震稳定静力分析方法之后,又根据世界上若干地震区土坝实际情况的记载,提出土坝防震工程措施的重要性,和在地震区设计土坝时应注意的问题.文中最后并提出了今后研究工作的初步意见.

This paper describes a mothod of Oombining theoretical Calculation baaed on the finite element with mechanical impedance testing [techniques.]Using this method we have determined [dynamic bending elastic modulus E for helicopter fiberglass tail rotor and the variation of modulus K with the frequency and temperature. These data are indispensable original parameters in helicopter tail rotor designs at present. This paper also describes a mothod of estimating modal damping coefficient 77 by using the acceleration...

This paper describes a mothod of Oombining theoretical Calculation baaed on the finite element with mechanical impedance testing [techniques.]Using this method we have determined [dynamic bending elastic modulus E for helicopter fiberglass tail rotor and the variation of modulus K with the frequency and temperature. These data are indispensable original parameters in helicopter tail rotor designs at present. This paper also describes a mothod of estimating modal damping coefficient 77 by using the acceleration mobility spectrogram measured.

本文介绍了利用有限元的理论计算与机械阻抗测试技术相结合的方法,确定直升机玻璃钢尾桨的动态弯曲弹性模量E及E随频率和温度的变化关系。这些数据是目前直升机尾桨设计必不可少的原始参数。还介绍了利用测量得到的加速度导纳谱图确定模态阻尼系数η的方法。

In this paper, the basic principles and main features of a universal computer programme using finite element method of subspace iteration to calculate structural elements of a machine tool are introduced. During the calculation, the structural elements are regarded as a box-type structure made up of thin flat plates. For checking the computed accuracy obtained from this programme, the resonance frequencies and modes of a cantilever beam divided into meshes with different fineness are calculated and compared...

In this paper, the basic principles and main features of a universal computer programme using finite element method of subspace iteration to calculate structural elements of a machine tool are introduced. During the calculation, the structural elements are regarded as a box-type structure made up of thin flat plates. For checking the computed accuracy obtained from this programme, the resonance frequencies and modes of a cantilever beam divided into meshes with different fineness are calculated and compared with the accurate solution obtained from analytical approach. The computed results about the resonance frequencies, modes and forced vibration regardless of damping in a cross-beam of numerical control planomilling machine are also introduced.

本文介绍了用子空间迭代的有限元法计算机床大件(也称结构件)振动的基本原理和所编制的通用计算程序的主要特点。计算时将机床大件按空间平板组合结构来处理。为了检验所用程序的计算精度,对不同粗细网格的悬臂梁进行了自振频率和振型的计算,并和用解析法计算所得的精确解作了对比。本文并介绍了对数控龙门铣床的横梁进行自振频率、振型和不计阻尼时的强迫振动计算的结果。

 
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