結合振動 的英文怎麼說
中文拼音 [jiēgězhèndòng]
結合振動
英文
combining vibration- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 合 : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 結合 : 1 (發生密切聯系; 聯合) combine; unite; integrate; link; binding; coalition; cohesion; connectio...
- 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
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When the structural vibrations are in turn excited by engine operation, a closed loop relationship exists.
當結構振動是由於發動機工作所激勵時,存在一閉合迴路關系。Active structure acoustic control ( asac ) is the leading field in the area of vibration and noise control. based on the most current academic and experiment results of domestic and overseas in asac, modern robust control theory ( h _ control theory ) and modern hydrokinetics theory 、 solid dynamics theory are used to build the control model of asac in this thesis. and the h _ control experimental system is build based on modern signal processing technology and compter technology
本文在國內外最新的asac理論研究與實驗成果的基礎上,首次將現代魯棒控制理論( h _控制理論)與現代流體動力學、固體動力學理論相結合,建立了結構振動聲輻射主動控制模型,提出了設計魯棒h _控制器的新方法,並採用現代信號處理技術、計算機技術建立了結構振動聲輻射魯棒h _控制實驗裝置,進行了實驗研究。A theory annoyance model for structural vibration serviceability design is proposed in this research on the basis of structural dynamics, reliability theory and psychophysiology methods. the aim of the research is to propose a newly quantified annoyance method to replace the commonly used semi - quantified method for vibration serviceability design
本文結合結構動力學,可靠度理論和心理物理學,提出了基於煩惱率的結構振動舒適度設計理論模型,其目的是使工程結構振動舒適度的設計方法從原來的半定量設計階段提高到定量設計、可靠度設計和優化設計階段。In a situation that various kinds of concrete material, admixture and match ratio certainly, in order to be up to various kinds of even distribution which make up the material, form good inside micro organization and structure, vibration is it as concrete making lawing of filling a prescription basic, play an extremely important role to mix
在混凝土各種組成材料、外加劑和配合比一定的情況下,為了達到各種組成材料的均勻分佈,形成良好的內部微觀組織和結構,振動攪拌作為混凝土基本的制配方法,起著極為重要的作用。It is showed in wind - vehicle - bridge system vibration analysis that cross wind action can remarkably increase the response of bridge and vehicle. generally, the response of bridge and vehicle are increased with wind speed and train speed, one case that vehicle is on leeward side of deck is more unsafe than another case that vehicle is on windward side of deck. nonlinear factors can more influence bridge than vehicle
風?車?橋系統耦合振動分析結果表明:考慮風的作用會顯著增加車輛和橋梁的響應;車輛和橋梁的響應總體上隨風速和車速的提高而變大;車輛位於橋道背風側時較迎風側時更為不利;非線性因素對橋梁的影響較車輛的要大。Frequency domain analysis and time - frequency joint analysis of experimental results show that the complex vibration of target can be effectively detected by laser micro - doppler effect, and it lays the foundation of target detection, classification and recognition
實驗結果的頻譜分析和時頻域的聯合分析表明:利用激光微多普勒效應,可以有效地探測目標的復合振動,為目標的探測、分類和識別奠定了基礎。From this thesis, it can be stated that the use of observation implement and active cable can produce timely active control to ship in the wave. because active cable can enhance ship ' s ability of anti - siamming but do n ' t affect ship ' s inward capability, it should be given some attention in the application research of active control method in ship structure vibration by slamming
從本文中可以看出,將觀測器和作動器相結合可以對航行於波浪中的船舶結構振動實施適時的主動控制,並且裝上作動器不但不會影響船體本來的性能,而且可以增加其抗波浪砰擊能力,因此主動控制方法在船舶結構砰擊響應控制方面的應用和研究應該給予一定的重視。Using vogel ' s wear index as the rail side wear index, the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary, analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically. this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990, then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear. in the end, some measures for regarding the side wear on curves are put forward
從輪軌摩擦、輪軌接觸幾何關系、輪軌接觸應力和輪軌蠕滑等方面對鋼軌側面磨耗機理進行了探討,從軌道幾何參數、機車車輛運營條件等方面對鋼軌側面磨耗的影響因素進行了重點分析和總結;應用輪軌系統動力學,建立了輪軌空間耦合振動時變模型,採用vogel側磨指數作為鋼軌側磨指標,系統分析了輪軌參數變化的情況下,軌頭側面磨耗的變化規律,重點分析了軌道不平順對鋼軌不均勻側磨的影響;對山海關工務段1990年以後現場測得的曲線鋼軌側磨數據進行了分析,通過擬合得到了鋼軌側磨量與運量的關系曲線,並總結了曲線上股鋼軌側面磨耗的特徵和發生、發展規律;最後提出了一些減緩曲線鋼軌側面磨耗的措施。Hybrid simulation and real - time control for active control of structure vibration
結構振動主動控制的混合模擬和實時控制系統設計Periodic, quasi - periodic and chaotic motions show on alternately when the rotating speed is near to 2 / 3 0. combined step - by - step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward. based on riccati method, the increment transfer matrix method is used in a multi - mass model
將逐步積分法與傳統傳遞矩陣法相結合,提出了增量傳遞矩陣法思想,文中相該方法應用於多段集中質量模型,並結合riccati法,推導了汽輪發電機組軸系彎扭耦合振動響應計算的矩陣表達式,並開發了一套較完善的汽輪發電機組彎扭耦合振動分析軟體。Base on review of existed study and application in suppressing cable vibration in the world, technique of mitigating cable vibration with viscous damper and mr damper has been investigated in this dissertation, and the main contents and progresses in form of summary are as following : 1 the motion differential equations of the cable - damper system are formatted, which take into account these factors, such as the inclined angle, sag, stiffness etc. coupling motion between cable and deck is studied with analytical and numerical method. numerical results show that large amplitude vibration of cable with beat rhythm will occur when exciting frequency of deck equals two times modal frequency of cable
本文在對國內外斜拉索振動控制研究與應用現狀進行綜合評述、分析的基礎上,針對上述問題進行了深入研究,具體的研究內容和取得的成果包括: 1 、建立了斜拉索-阻尼器系統運動方程,對拉索與橋面的耦合振動作了分析和研究,數值結果顯示當橋面激振頻率等於某階拉索模態頻率的兩倍時,很小的初始擾動將引起拉索的大幅振動,並呈現拍振的特徵,與實測的拍振信號一致。Based on the hypothesis that the input for earthquakes is white noise and using the principle of random optimal control, the features of vibration control and the effects of parameters such as isolation degree, damping and ground site on them were analyzed
假定地震動輸入為白噪聲,運用隨機最優控制原理,分析了組合隔震結構振動的控制性能以及隔震度、阻尼和場地等參數的影響。Wan zhou yangtze river bridge is the establishing large span steel truss bridge now, and the property of it is the lower stiffness of the main girder. when the speed is high, the analyses and the vibration control of vehicles and bridge are very important, especially the dynamic lateral response of the system
萬州長江大橋是目前在建的大跨度鋼桁架拱橋,其特點是主梁結構剛度較小,在高速行車速度下,對起車橋耦合振動分析及其控制尤其是車橋系統橫向動力響應研究則尤為重要。The design methods, such as the theory of mechanism dynamic design, the finite element method and the theory of fuzzy reliability etc, are introduced to study the vibration and structural parameters optimization design of the swing movable teeth drive system. the dissertation includes the following six aspects : a ), the torsional vibration dynamic model of swing movable teeth transmission system ; b ). the torsional and flexural vibrations dynamic analyzing model of swing movable teeth drive ; c )
研究的內容包括以下六個方面: a )擺動活齒減速器傳動系統扭轉振動的動力學建模; b )擺動活齒減速器傳動系統彎、扭耦合振動的動力學分析建模; c )擺動活齒減速器箱體振動的有限元模態分析; d )擺動活齒減速器高速軸的抗共振模糊可靠性設計; e )結構參數對活齒傳動嚙合剛度的影響; f )擺動活齒傳動的模糊可靠性優化設計。Usually only select states are available and output feedback is used. it is shown that output feedback, while not as effective as full state feedback, is still able to damp vibration. thirdly, virtual vibration measurement and control instrument is developed using lab view and homemade daq, then experiments are performed to validate the conclusion of analysis results
最後,為了驗證在理論分析和數值模擬中得到的結論,利用虛擬儀器軟體labview和國產數據採集板開發了虛擬振動測控平臺,然後對附加主被動混合阻尼的懸臂梁結構,實現了結構振動控制,實驗結果表明主被動阻尼分離結構對低階模態振動具有更顯著的控制效果。The new method of design robust h _ asac controller with mixed uncertainty is presented. the main ideal of the new method is as follows : the reduced modals are taken as additional disturbance for system, the original problem is transformed into the problem of robust performance design for the parameter uncertain system. then the parameter uncertain problem is reduced to the standard h _ control problem to solve
2 .首次基於魯棒h _控制理論,提出了設計具有復合攝動的結構振動聲輻射系統魯棒h _控制器的新方法,即:通過將未建模動態作為系統的附加干擾,把復合攝動問題的魯棒性能設計問題轉化為參數不確定系統的魯棒性能設計問題,然後將參數不確定問題變化為標準h _控制問題求解。The geometries and the harmonic vibrational frequency of ( no ) 2 + have been calculated at b3lyp / 6 - 311 + + g * * level. the results indicate that there are five stable doublet states
幾何優化並結合振動頻率分析表明,該復合物存在5種可能的穩定構型。1. 2. using different theory, especially the density function theory, we calculated the geometris of the ( no ) 2 - and harmonic vibrational frequency. the results indicate that there are seven stable doublet states
在各種計算方法的基礎上,特別是各種dft方法,對( no ) _ 2可能存在的構型進行了尋找,幾何優化並結合振動頻率分析表明,存在7種可能的穩定構型。By analyzing the reasons of vibration of the wheel loader and according to theories of vibration control & decrease, the measures of the wheel loader ' s vibration decrease are given, a method is put forward for systematically controlling and decreasing the vibration during design and technical transformation of product
通過分析輪式裝載機振動產生的原因,結合振動控制和抑制的原理,提出輪式裝載機振動控制和抑制的措施,為新產品設計和技術改造中系統性地進行振動控制和抑制提供解決途徑。In the article, it is emphasized on the generally applied adaptive control, sky - hook control and optimum control integrating with the theory and technique of active vibration control on the base of vibration model of vehicle suspension. three performance targets : acceleration of vehicle body, dynamic flexibility of suspension and dynamic load of tyre are evaluated
論文在建立汽車懸架振動模型的基礎上,結合振動主動控制的理論和技術,著重研究了被廣泛應用的自適應控制、空鉤控制和最優控制,並通過計算機進行模擬,對車身加速度、懸架動撓度和輪胎動載荷三個性能指標進行了評價。分享友人