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structure vibrations
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  结构振动
     Simulation results show that the presented control can ensure the precision of the attitude control performance, suppression of the structure vibrations and robustness of the control system.
     仿真结果表明,该方案可以保证卫星的姿态控制精度、结构振动抑制和控制系统鲁棒性。
短句来源
     In recent years, the technique of active vibration control has been developed rapidly, and many active control methods of structure vibrations have been used in practical engineering.
     近年来,结构振动主动控制研究得到了快速发展,并在实际工程中有了许多成功的应用。
短句来源
     By means of experimental modal analysis technique, dynamic characteristics for each structures are obtained. In order to study flow-induced vibrations, the multisimilarity model for the complex structure is made which satisfies simultaneously hydrodynamic, concrete and metal structure vibrations, and mutual interaction of fluid and structure as well as structures each other.
     通过水工模型、结构模型及水弹性相似模型,全面地研究了水流流态、结构动荷载、结构动特性、流激结构振动情况,以及抑振措施。
短句来源
     The technique of active vibration control has been developed rapidly, and many active control methods of structure vibrations have been used in practical engineering.
     近年来,结构振动主动控制研究得到了快速发展,并在实际工程中有了许多成功的应用.
短句来源
     The dynamics models provided with zero-mass elements were usually encountered in machine and the structure vibrations,and the superposition method of vibrations were mostly used for their calculation.
     在机械及结构振动中遇到的有零质量元素的动力学模型的计算多应用振型迭加法.
短句来源
  “structure vibrations”译为未确定词的双语例句
     Wavelet Filters Based Separation of GPS Multi-path Effects and Engineering Structure Vibrations
     GPS多路径效应影响与结构振动的小波滤波筛分研究
短句来源
     The results show that the algorithm has remarkable effect on suppressing structure vibrations,excited under the periodic and random excitations.
     结果表明:运用该算法对上述两种激振信号的振动均有明显的抑制作用。
短句来源
     Aside from the principal parameters of upper structure vibrations, the effect of rotational vibration is taken into special consideration.
     该公式能够较全面的反映出影响上层建筑纵向振动的各种主要因素,不仅考虑剪切影响,而且还考虑回转影响。
短句来源
     In this paper,we discuss how to realize active control by means of fuzzy control theory for a class of flexible structure vibrations that are driven by transit, periodic and random excitations. A PD fuzzy active control method based on continuous fuzzy judging function is presented.
     针对柔性结构在不同激振信号下的振动抑制问题,研究了如何应用模糊控制理论实现柔性结构的主动控制,提出了一种基于连续模糊判决函数的模糊PD主动振动控制方法,对悬臂梁分别在瞬态、正弦及随机激振下的模糊PD主动振动控制进行了仿真研究。
短句来源
     The results show that the PD fuzzy active control method has remarkable effect on suppressing structure vibrations, excited under the above three excitations , the method has importance for large flexible structure of which the model is difficult to obtain.
     由于模糊PD主动振动控制对结构的不依赖性,该方法对难以建模的大型柔性结构的主动振动控制具有实际意义。
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  相似匹配句对
     The structure of P.C.
     大跨度预应力混凝土斜拉桥(简称P.C.斜拉桥)结构不仅经济、美观,而且可以采用悬臂浇筑方法施工、使这一桥型得以迅速推广。
短句来源
     On ITS Structure
     论ITS的结构体系
短句来源
     NONLINEAR COUPLING VIBRATIONS IN A STRUCTURE CONTAINING LIQUID
     充液结构的非线性耦联振动问题——多频共振研究
短句来源
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  structure vibrations
Some research has been done to reduce the effects of the supporting structure vibrations on the performance of long reach space manipulators 5.
      
In contrast, the proposed method to assess Io is based on a quantification of elastic structure vibrations excited by the recorded ground motions.
      


Based on the common formulae predicting the natural frequency of superstructure longitudinal vibrations, a new formula is presented in this paper by means of methods of statistics and mechanics analyses. Aside from the principal parameters of upper structure vibrations, the effect of rotational vibration is taken into special consideration. Calculations of many real-scale ships show that the formula presented here is of higher accuracy with reliable applications to vibration prediction in the preliminary...

Based on the common formulae predicting the natural frequency of superstructure longitudinal vibrations, a new formula is presented in this paper by means of methods of statistics and mechanics analyses. Aside from the principal parameters of upper structure vibrations, the effect of rotational vibration is taken into special consideration. Calculations of many real-scale ships show that the formula presented here is of higher accuracy with reliable applications to vibration prediction in the preliminary stage of ship design.

在参考了当的国内外常用的上层建筑纵向振动固有频率估算公式的基础上,运用统计回归和力学分析相结合的方法,提出了一个新的上层建筑纵向振动固有频率公式。该公式能够较全面的反映出影响上层建筑纵向振动的各种主要因素,不仅考虑剪切影响,而且还考虑回转影响。经对多条船上层建筑激振试验验证,用本文公式计算出上层建筑纵向振动固有频率与实测值接近,可满足工程上计算精度要求。本文公式可供船舶方案设计阶段使用。

A fluid and structure coupled vibration was analysed by using structure F. E. M and fluid B. E. M mathodes. A fluid complressibility influnce to a structure vibrations are studied, a calculating and experimental results are in good agreement. The studying results show that the influence of fluid compressibility to structure vibration is very important.

本文用结构有限元和流体边界元法,分析了流体为可压和不可压时的流固耦合问题,研究了流体的可压缩性对结构振动特性及响应的影响,计算结果同试验结果进行了比较,二者符合较好.研究表明,流体的可压缩性对结构振动响应的影响不可忽视.

This paper introduces a heavy rubber hydroelastic model, which satisfies the requirements of similarity criterion of both hydraulics and structure dynamics. Modern methods are adopted to test and analyse the model characteristics and dynamic responses induced by the discharge flowing through FeiLaixia overnow dam including pier, breast wall and guide wall.The experimental results are compared with the calculated results. This study not only is applicable to the structural vibration induced by discharge flow...

This paper introduces a heavy rubber hydroelastic model, which satisfies the requirements of similarity criterion of both hydraulics and structure dynamics. Modern methods are adopted to test and analyse the model characteristics and dynamic responses induced by the discharge flowing through FeiLaixia overnow dam including pier, breast wall and guide wall.The experimental results are compared with the calculated results. This study not only is applicable to the structural vibration induced by discharge flow with large power, low Froude number and high submergence, but also offers a good method for predicting various hydraulic structure vibrations induced by high velocity flow.

本文以飞来峡溢流坝系统(包括闸墩、胸墙、导墙结构)泄洪振动问题为背景,采用水力学和结构动力学相似条件同时满足的“二合一”模型——重橡胶水弹性模型,较现代的方法进行模态和过水激振测试和分析,并与计算机数值计算结果进行了对比研究.本研究不仅对解决大功率、低弗氏数、高淹没度的泄水结构系统水流诱发振动问题具有现实意义,同时对于高速水流诱发各种水工结构的振动研究也提供了一个较完善的方法.

 
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