隨機激振力 的英文怎麼說
中文拼音 [suíjījīzhènlì]
隨機激振力
英文
nrms- 隨 : Ⅰ動詞1 (跟; 跟隨) follow 2 (順從) comply with; adapt to 3 (任憑; 由著) let (sb do as he li...
- 機 : machineengine
- 激 : Ⅰ動詞1 (水因受到阻礙或震蕩而向上涌) swash; surge; dash 2 (冷水突然刺激身體使得病) fall ill fr...
- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 隨機 : random stochasticrandom
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With the developing trend of large size and large capacity, the turbine ' s natural frequencies are decrescent, maybe reaching the input forces " order of magnitude. so, it is becoming more and more important to analyze the stability of a turbine
隨著水輪機組朝著大尺寸、大容量的方向發展,其自身的固有頻率也隨之降低,與干擾激振力的頻率屬于同一數量級,因此,水輪機組運行的穩定性就變成更為重要的問題。Earthquake and wind ), because of the damping matrixes of the two structures " motion equations are both non - classical, the dynamic equation ca n ' t be decoupled by the traditional real - mode analysis ( the mode - superposition method ). though, in this thesis the complex - mode analysis is used to solve the stationary and non - stationary random earthquake response of structures and their analytic expressions are got. on the basis of these expressions, the optimal parameters of the two structures " isolation & seismic decrease equipment are analyzed
目前,基礎隔震結構、 「加層減震」 ( tmd減震)結構正逐步應用於工程實際,由於這兩種結構在動力荷載(如地震、風)作用下動力方程中的阻尼矩陣為非經典情形,傳統的實模態分析方法(振型分解法)不能使動力方程解耦,因此本文運用復模態分析方法求得了結構在平穩和非平穩隨機地震激勵下結構隨機地震響應的解析表達式,在此基礎上進行了基礎隔震和tmd減震裝置參數的優化分析。On the other hand, inhibitory areas of ftc could be abolished partially or completely during bicuculline application. these results showed that gabaergic inhibitory afferent projections to recorded neurons were activated by random resonance caused by weak noise in cochlea, which provided inhibitory input for sharpening frequency tuning and made neuron more precisely analyze sound signal near its bf. therefore, this experiment presented a possible evidence of cellular level for interpreting why human and animal could extract or capture sound signal of specific frequency from the environment with competing noise
說明山弱噪聲引起的耳蝸隨機共振在_ _仁行傳入過程中可能激活了至所一記錄的jc神經元的gaba能抑制性神經迴路,這種gaba能抑制為銳化神經元頻率調諧提供了一種抑制性輸入,使ic神經元對靠近最佳頻率的頻率分析變得更為細致和精確,由於聲頻率是聲信號的重要參數和信息載體,頻率調諧的銳化意味著對聲頻率分析能力增強,從而為解釋人們為什麼能從充滿噪聲的環境中捕捉或提取與行為學相關的信號提供了一種細胞水平的實驗證據。We apply fuzzy control theory to active control over engine body vibration, design fuzzy control system which combines intelligent control with feedback control. this control strategy mends the flaw of complexity, nonlinear and uncertainty when we use traditional control method. by measuring rotate speed and vibration speed of i. c
在主動控制的基礎上,採用了模糊控制的演算法,設計了內燃機整機振動模糊控制器,改進了傳統控制方法在處理振動復雜性、非線性和不確定性等方面的缺陷,通過測量內燃機轉速和內燃機整機振動速度信號,動態地改變動力減振器的剛度,使減振器的固有頻率跟隨內燃機整機振動激勵頻率的變化,達到降低內燃機振動的目的。Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non - stationary random excitation are developed by means of the random variable ’ s
在此基礎上,從隨機振動頻域分析出發,導出了在平穩或非平穩隨機激勵下,隨機結構的位移響應均方值、應力響應均方值的數字特徵計算表達式,通過算例驗證了所建模型和所提求解方法的正確性和有效性。Stochastic resonance ( sr ) is a counterintuitive phenomenon of nonlinear dynamic systems wherein the noise ( stochastic force ) plays a constructive role. this phenomenon has then attracted much attention in the past two decades, and it has been observed that sr can occur in a wide variety of systems
隨機共振現象是非線性動力學系統中的一種反直觀的現象,當一個非線性動力學系統受到一個隨機力(噪聲)的激勵,也就是系統輸入具有一個連續的頻譜,系統和輸入的隨機激勵之間會產生一種協同作用,使得系統輸出的性能有所提高,這一現象被稱為隨機共振。Abstract : this paper presents a solved computation method fo r non - stationary random response subjected to excitation based on the theory of vehicle dynamics, launch dynamics and random vibration the dynamic and response characteristics of the selfpropelled gun launching duping travelling are studi ed, which is of value in structural design and practical operation of the system
文摘:該文以車輛行駛動力學和火炮發射動力學理論為依據,利用隨機振動理論,提出了在隨機激勵下非平穩隨機響應的計算方法,並以某自行火炮為研究對象,用該方法探討了該系統在隨機路面上作行進間射擊時的動力特性和動態響應,對該類系統的結構設計和實際應用均有參考價值According to the principle of fatigue damage, a useful method of probability design for springs is presented
通過系統動力響應的譜分析,應用可靠性研究方法,給出路面隨機激勵下減振彈簧設計、疲勞壽命估計方法和步驟。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。In order to find out the speciality of the hysteretic system under random excitation, random responses and model parameters of hysteretic system were studied by the method of stochastic equivalent linearization and mento - carlo simulation
為了更好地了解在隨機激勵作用下遲滯阻尼振動系統的動力學特性,本文將隨機等價線性化法與monto - carlo法應用於遲滯阻尼振動系統隨機響應分析並對該系統的參數特性進行了初步的研究。Abstract : in this paper, we study the random equation to elastic caminal rectangle plate under single concentrated random load by random vibration theory, and discuss the dynamic response to it by separating the variable, and study the frequency response function and unit pluse response function to the load and response
文摘:運用隨機振動理論,推導了彈性矩形薄板在單個隨機集中載荷下的振動方程,並用分離變量法討論了其動力響應,研究了對應于激勵與響應的頻率響應函數和單位脈沖響應函數。In order to study the vibration in the artillery traveling more accurately and completely, a tire force model of non - linear and self - adapting stochastic contacting mark is set up, and this model provides a good method to study the driving system ' s horizontal and vertical excitation caused by the plainness road surface. the suspension of the tractor is simplified by the model of spring - damp system, and the artillery torque rod is also simplified by torsion spring
為了更準確和全面地研究火炮牽引行駛過程中出現的振動,建立了非線性自適應隨機接地印跡的輪胎力學模型,該模型能很好地研究路面不平度對火炮牽引系統的垂直和縱向激勵;牽引車懸架簡化為彈簧阻尼系統;火炮扭轉桿簡化為扭簧。The stochastic structure and stochastic intelligent truss structure are taken as research object in this paper. the analytical model and method of the structural dynamic characteristic are investigated. when the applied forces are random excitation or random process ( stationary random process or non - stationary random process ) excitation, the structural dynamic response, the active vibration control for the intelligent structure, the optimal placement of the sensor and the actuator and the optimization of the feedback gains of the closed loop control system for the intelligent structure, and the effects of the structural parameters on the active vibration control et al are all studied systemically
本文以隨機結構和隨機智能桁架結構為對象,對結構動力特性分析模型與求解方法進行了研究;對結構在隨機力或隨機過程(平穩隨機過程或非平穩隨機過程)激勵下,結構的動力響應、結構的振動主動控制、智能結構中作動和傳感元件配置位置與閉環控制系統增益優化、結構參數對振動主動控制效果的影響等問題開展了全面而系統的研究。Rated broad band random force
額定寬帶隨機激振動力分享友人