excitation earthquake 中文意思是什麼
excitation earthquake
解釋
激發地震- excitation : n. 1. 刺激，興奮，激發，鼓舞。2. 【物理學】激發；【電學】激勵、勵磁。3. 【植物；植物學】激感（現象）。
- earthquake : n. 1. 地震。2. 大變動，動亂。
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2. the finite element model of the structure was formed through reasonable simplification. and modal shapes were studied by using the famous program of ansys. 3. long span suspension arch bridges " responses to uniform excitation of earthquake were discussed. one dimension excitation and travalling - wive effect were introduced in this bridges with geometric nolinear being considered
因此，研究懸索拱橋的地震響應，了解大跨度懸索拱橋在強烈地震動作用下的動力行為，對於此種橋型的實際應用具有很大的指導意義。 -
The transfer of earthquake wave in ground soil is related to soil characteristic, excitation magnitude, etc. it is not always amplificatory, but likely to be filter and isolation
表明地基土層對地震動的影響與場地土特性、地震動大小等有關，不一定是放大作用，也可能起濾波和隔震作用。 -
By making use of the time dependent covariance and cross covariance formula which used to calculate the non - stationary response under earthquake random excitation and deduced by xiyuan zhou and hu in 1965, the covariance and cross covariance formula of the four envelope models was deducted and the result of four models compared
本文通過應用周錫元、胡聿賢在1965年提出的計算地震動隨機激勵作用下非平穩響應的時變自相關方差和時變互相關方差公式，分別推導了四種包線函數模型的時變自相關方差和時變互相關方差表達式，並比較了四個模型的結果。 -
Are uncertain and should be regarded as random variables, therefore the reinforced concrete frame is stochastic structure inherently, and then its motive equations converted to combined random differential equations for the uncertain parameters and external random excitation. these equations were solved by order - orthogonal expansion method with pseudo - excitation method, and then the statistic stochastic responses of random structure were obtained. at last, based on the stochastic cumulative damage model with double parameters developed by park, formulas were formulated for calculating structural earthquake damage probability using the structural reliability theory ( mainly jc algorithm ) in extensive random space
首先對受地震激勵的剪切型鋼筋混凝土結構進行建模，用隨機等效線性化方法將二階非線性微分方程組化成一階線性微分方程組（或稱之為狀態方程） ；再考慮材料等參數的隨機性，則狀態方程成為復合隨機微分方程組，將擴階系統方法和虛擬激勵方法推廣並應用於這個復合隨機微分方程組，求出結構的隨機響應量的統計參數；最後採用隨機累積損傷破壞準則，在廣義隨機空間內，用jc演算法求解失效概率，進而求出結構的抗震可靠度。 -
Finally, the cqc ( t ) algorithm which used to calculate the non - stationary under earthquake random excitation was derived, the exemplary analysis show that the improvement of accuracy of cqc ( t ) algorithm is limited for the normal structures which have low period
最後本文提出了計算地震動隨機激勵作用下非平穩響應的cqc （ t ）方法，通過算例比較發現對於一般的自振周期較小的結構， cqc （ t ）方法的精度提高並不明顯。 -
This dissertation has studied the structural model and model predictive control ( mpc ) algorithm that was first implemented for the structural vibration control of the tall building under earthquake excitation. based on analyzing structural motion equation and the state space form equation of the earthquake - excited structural model of the tall building, predictive model and control objective functions are defined and the mpc system of the tall building is set up
本文主要研究高層建築結構振動控制的結構模型和預測控制演算法，首次將預測控制應用到高層建築結構地震反應控制中，在分析受地震波激勵的高層建築結構模型的運動方程及其狀態空間形式方程的基礎上，確定預測模型和控制目標函數，建立高層建築結構預測控制系統，從理論上對預測控制在高層建築結構振動控制中的應用進行研究。 -
Assuming that the earthquake ground motion is a zero mean valued non - stationary random excitation, the higher accuracy numerical algorithm of these complex oscillators were developed in virtue of the principle of pseudo - excitation method
通過假定地震地面運動為一零均值的非平穩隨機激勵，應用虛擬激勵法原理，推導得到了廣義復振子動力坐標計算的一般公式，進而得到了非比例阻尼線性體系非平穩隨機地震響應計算的一般解答。 -
Then, the multidimensional pseudo excitation method is developed for nonstationary random vibration analysis of lattice shells under multi - support and multi - dimensional earthquake inputs
在此基礎上，發展了多維隨機虛擬激勵演算法的理論，推導出了考慮多點、非平穩輸入時多維虛擬激勵法的計算公式。 -
The research work about the local non - linear random vibration of engineering structure under earthquake excitation includes ; discrete hinge model combined with the pem and the elm is used to solve such non - linear problem which the bend - type hysteretic effect of some components is taken into account
對于工程結構地震作用下局部非線性隨機振動，將離散塑性鉸模型與虛擬激勵法和等效線性化法相結合，求解這一類局部發生彎曲型滯遲效應的非線性問題。 -
Dynamic characteristic of orthogonal vierendeel dome was discussed, and the influence on vibration characteristic acted by difference including rise - to - span ratio, shell thickness, section area and constraint condition was studied. vibration shapes - separation - spectra - method and time - history method were adopted to analyze the dynamic response of orthogonal vierendeel dome under common earthquake. by comparing dynamic response in different direction and dimension seismic excitation, the value and distribution of dynamic internal force were obtained
本文研究了正交空腹網殼結構的動力特性，分析了矢跨比、網殼厚度、腹桿截面和支座約束條件對結構自振特性的影響；採用反應譜法和時間歷程法對正交空腹網殼的地震響應作了詳細的分析，分別研究了結構在不同方向地震激勵下和在不同維數地震激勵下動力響應的數值大小和分佈規律，並比較了兩種方法的結果差異，對抗震設計具有參考價值。 -
At the same time, the dynamic response of structure under environmental excitation such as ground micro - earthquake, vehicle vibration and wind vibration, is usually disturbed with noise. thereby, the signal - to - noise ratio of data collected by sensors is rather low
同時，結構在環境激勵（如:地面微震、車輛振動或者風振等）作用下的響應信號由於受到噪聲干擾，儀器所能採集到的信號信噪比較低，而且是非平穩信號。 -
The results indicate that fuzzy control strategy is effective in the vibrant control of wind response of guyed mast and the structures under control with different input variables show remarkably different responses under earthquake excitation. in practical application, input variable can be selected on the basis of different control aims to obtain different control effects
結果表明，模糊控制是一種有效的控制策略，受控結構在不同的輸入變量下其結構響應具有很明顯的差異，在實際應用中可依據不同的控制目標和控制要求靈活地選擇輸入變量以得到不同的控制效果。 -
Response spectrum analysis ( rsa ) is a procedure for computing the statistical maximum response of a structure to a base excitation ( or earthquake )
響應譜分析是一個計算結構對基礎激勵（或地震）的統計最大響應的過程。 -
First, the unified approach is combined with the monte carlo method. as an illustrative example, the evolutionary random response of a random shear column under the niigata earthquake excitation is analysed
1 ）將統一解法與montecarlo隨機模擬方法結合，分析了含隨機參數的剪切柱模型在niigata地震激勵下的演變隨機均方響應問題。
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