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随机风     
相关语句
  random wind
     A complex mode method to aualyse the random wind vibration response of the structure
     结构随机风振响应分析的复模态法
短句来源
     Second-Order Random Wind Vibration Response Analysis of Steel Braced Frame Structures in Highrise Buildings
     高层钢框架-支撑结构二阶随机风振响应分析
短句来源
     Based on nonlinear characteristics of the structure and its coupling effect with the wind,the nonlinear wind vibration responses of the new structure under the action of random wind load in time domain using the method of simulating the random wind loads are studied.
     基于这种结构的非线性特征,并且考虑风与结构的耦合作用,应用随机风荷载模拟方法,研究新型雨篷结构在随机风荷载作用下时域内非线性风振响应。
短句来源
     INFLUENCE OF RANDOM WIND FIELD ON THE INFRARED RADIANCE STATISTICS DISTRIBUTION OF NATURAL TERRAIN
     随机风场对自然地表红外辐射统计分布的影响
短句来源
     DYNAMIC RESPONSE ANALYSIS OF FOAM SANDWICH COMPOSITE SHEETS UNDER RANDOM WIND EXCITATION
     复合材料泡沫夹心板在随机风荷作用下的动力响应分析
短句来源
更多       
  stochastic wind
     The 16-dimensional random process is got from using FFT to simulate the stochastic wind field.
     采用快速傅利叶变换(FFT)进行了随机风场的仿真,仿真得到了16维脉动风荷载时程样本。
短句来源
     STOCHASTIC WIND FIELD SIMULATION AND COUPLING WIND-INDUCED RESPONSE STUDY OF MEMBRANE STRUCTURES
     薄膜结构随机风场模拟和耦合风振响应分析
短句来源
     This paper has worked out the vibration equation of cable truss by treating it as a discrete system and solved the vibration frequency and the displacement responses under stochastic wind loading.
     本文采用离散理论求得索桁架的振动方程,进一步可求得在随机风荷载作用下索桁架结构的振动频率及其位移响应。
短句来源
     Under the above premises,in this paper the Meyer wavelet base and then the inverse wavelet transform are employed to simulate the stochastic wind field.
     针对这一点,采用Meyer小波基,利用小波逆变换,模拟随机风场的脉动风。
短句来源
     DISCRETE RANDOM VIBRATION ANALYSIS OF GUYED MASTS UNDER STOCHASTIC WIND LOAD
     桅杆结构随机风振的离散分析法
短句来源
更多       
  stochastic wind load
     DISCRETE RANDOM VIBRATION ANALYSIS OF GUYED MASTS UNDER STOCHASTIC WIND LOAD
     桅杆结构随机风振的离散分析法
短句来源
     Discrete Analysis of Vibration Response Moment of Guyed Mast to Stochastic Wind Load
     随机风荷载作用下桅杆结构响应矩计算的离散分析法
短句来源
     The finite element model of the radar vehicle is established under the ANSYS circumstance, and then under the action of stochastic wind load, the static and dynamic responses analysis is performed, in order to strengthen the weakness of the model.
     运用大型通用有限元软件ANSYS,对车载雷达进行有限元建模,并分析其在随机风荷作用下的静、动态响应,对于分析中出现的薄弱环节,进行强化设计;
短句来源
     Thus, discrete random vibration theory is applicable, and recurrence formulas to calculate dynamic response of guyed mast under stochastic wind load are deduced.
     于是离散分析理论适用,推导出桅杆结构随机风振响应的递推公式。
短句来源
     This paper is based on the theory of finite element method and stochastic wind load, the finite element model of the antenna structure for a radar vehicle is established and the finite element analysis of wind-caused vibration is studied. According to the theory of structural optimization design, the optimization design of the antenna structure is achieved.
     论文以有限元分析方法和随机风荷理论为基础,对车载雷达天线结构进行有限元建模和风致振动有限元分析,并结合结构优化设计理论,对天线结构进行了优化设计。
短句来源
更多       
  random gust
     In this paper, based on the random process model of fluctuating wind foers,the maximum inential force of wind-induced random response of a stucture is determined and theprobability distribution of random gust response factor is obtained first.
     本文首先考虑脉动风力的随机过程性,确定了脉动风力作用下结构随机风振效应的最大惯性力,导出了随机风振系数的概率分布函数;
短句来源
     Model uncertainty of the aircraft and effect of random gust are considered, while final simulation results are ideal.
     设计中考虑了飞机的模型不确定性和随机风干扰的影响。
短句来源

 

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      random wind
    By means of the technique it becomes possible to adopt with a high degree of reliability a correct decision as to whether to continue or to halt drilling when the platform is functioning under conditions of random wind and wave disturbances.
          
    OSS structural displacements due to average static loads of 75 N Dynamic response analysis to a random wind load was then performed.
          
    Regarding the multi-point representation of random wind field the description of spatial coherence is essential for any functional description.
          
      stochastic wind
    Alternatively, stochastic wind-speed models can be used that generate stochastic signals representing wind-turbulence.
          
    For wind generation applications one must have in mind that the prime mover is depending on the stochastic wind speed variations.
          
    In addition to stochastic wind terms, uncertainty about the mass of the aircraft is introduced as a uniform distribution between two extreme values.
          
    In addition to stochastic wind terms, uncertainty about the mass of the aircraft is introduced as an uniform distribution between two extreme values.
          
    We find that semi-stochastic wind bursts are significantly more efficient at forcing interannual variability than purelystochastic wind bursts.
          


    In this paper, the random process theory is used to study the problem of the dispersion of rockets effected by the random wind in the exterior ballistics. When the mathematical model of the dispersion was obtained, we analysed some basic laws of the dispersion, represented the physical nature of these laws according to the spectral structure of the wind field and proved that the gust intensity σ_w and the scale of turbulence L are two important physical parameters upon which the dispersion depends.

    本文应用随机过程理论,研究了火箭外弹道学中随机风场作用下,火箭弹的散布问题。在导出描述散布的数学模型之后,分析了散布的若干基本规律,并根据风场的谱结构,阐明了这些规律的物理特性,证明了风场的阵性强度σ_w与扰动尺度L是决定散布的二个重要物理参量。

    In this paper, the effect of spatial correlations of wind-excited random vibration is studied and the corresponding formulas for towers and tall buildings are presented. Also, the formulation of the conversion factor has been developed for design purposes and for revision of the code on design loading. Thus, if the calculated value by random vibration analysis without considering the spatial correlations is multplied by this conversion factor, the result will be identical to that obtained by considering the...

    In this paper, the effect of spatial correlations of wind-excited random vibration is studied and the corresponding formulas for towers and tall buildings are presented. Also, the formulation of the conversion factor has been developed for design purposes and for revision of the code on design loading. Thus, if the calculated value by random vibration analysis without considering the spatial correlations is multplied by this conversion factor, the result will be identical to that obtained by considering the spatial correlations. Furthermore, on the basis of three experimental data for different configurations and vibration modes of structures, this paper has worked out the numerical values of conversion factor which can be used for design purposes and the reference in revision of the code on design loading.

    本文研究随机风振空间相关性的影响,导出了针对高耸高层结构考虑空间相关性的风振计算有关公式。为了便于应用及规范修订,导出折算系数有关公式,按目前常用的未考虑空间相关性的计算结果乘以此折算系数,即为考虑空间相关性的结果.本文对各种试验资料、结构物外形等进行了分析和比较,得出了结论,可供实际应用和规范修订时参考。

    In this paper, the formula of the random wind dispersion of the unguided unstable finned rocket was derived. Then using digital computer, the table of characteristic function for engineering calculation was given.

    本文推导了静不稳定非制导尾翼式火箭的随机风偏公式,并给出用数字计算机计算的便于工程使用的特征函数表。从风偏形成的基本概念出发,本文还提出了人为地使折叠尾翼在火箭飞离发射器后一段时间再张开,从而使风偏为零的原理。

     
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