振動動力學 的英文怎麼說
中文拼音 [zhèndòngdònglìxué]
振動動力學
英文
vibration dynamics- 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...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
-
Study on dynamic characteristics of absorber
高速列車油壓減振器動力學特性研究We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response
其次藉助ansys有限元分析軟體,對系統進行了模態分析和動力學響應分析,獲得了不同天線結構參數下的衛星?天線系統的固有特性,簡諧響應的幅頻特性,隨機振動響應的功率譜密度,以及沖擊響應的最大幅值和恢復時間等。Across the rigid - flexible coupling dynamic analysis, we acquired the coupled effects between the three - dimensional attitude motion of the satellite and the flexible vibration of the antenna ' s supporting beam, and got the dynamic behaviors of the system. and we found the change pattern of the antenna ' s structure parameters, which decide the system ' s connatural characteristic and its dynamic response
通過對衛星?天線形成的剛柔耦合系統進行動力學分析,獲得了衛星的剛體運動與天線的彈性振動之間的耦合影響規律及其真實的動力學行為,得到了天線結構參數對衛星?天線系統的固有特性及其動力學響應的影響規律,為衛星姿態控制和天線結構優化設計奠定了基礎。The drive principle of the spherical manipulator based on friction is studied, and simplified to be a two - mass oscillator model, though which the dynamics characters, optimization, frequency respond, and the control strategy is studied. firstly, based on the former experiment, the investigation is on the dynamic characters of the friction drive principle
論文將對球基微操器的摩擦力驅動原理做深入分析,將其簡化為二元摩擦振子模型,通過對二元摩擦振子性質的討論,對應用摩擦力驅動原理的球基微操作器的運動狀態,動力學特徵,優化設計,頻響問題以及控制方式進行深入分析。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。In this paper, the rotating machinery at high speed is studied. there are discussed about numerical calculating methods for non - linear dynamical system, the rotor system radial impact and rubbing dynamics behavior analysis having the nonlinear rigidity on the unsteady and non - linear oil film, the rotor system dynamics behavior analysis with bending - torsional - pendular coupling vibrations, application of wavelet, fractal and network in fault diagnosis. the main works in this paper are as follows : ( 1 )
本文以高速旋轉機械為主要研究對象,系統、深入地研究了非線性動力學系統的數值計算方法、具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學行為、轉子彎扭擺耦合振動的動力學分析、小波和分形理論及人工神經網路在故障診斷中的應用問題。In the present dissertation, friction - induced noises emitted by a flat specimen rubbing against another flat specimen or a ball specimen under reciprocating sliding are studied. the detailed observation of the scars is conducted by means of a scanning electrical microscope ( sem ), laser scanning microscope ( lsm ), optical microscope and profilometer. the dynamic state variables are analyzed in detail using the discrete wavelet transform
使用電子掃描顯微鏡( sem ) 、激光掃描顯微鏡( lsm ) 、光學顯微鏡和表面輪廓測量儀等設備對摩擦噪聲發生的區域進行了詳細的觀察和分析,運用小波變換技術對摩擦噪聲狀態下的動力學變量進行了深層次的研究,應用matlab simulink語言對摩擦系統進行了振動動力學模擬,系統地研究了摩擦噪聲的形成機理。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。On the basis of kinetics ' basic principle of well drilling shaker, the kinetic condition of solid phased particles in well drilling liquid, under the status of un submersion, doing four movements as backward sliding, tossing, keeping motionless and forward sliding relative to the surface of vibrating sieve has been analyzed
摘要根據鉆井篩動力學的基本原理,分析了鉆井液中固相顆粒在非淹沒狀態下相對于振動篩面作后滑、拋擲、靜止和前滑4種運動狀態的動力學條件。Small amplitude approximation and dynamic stabilities of a strained superlattice
小振幅近似與形變超晶格系統的動力學穩定性With dynamical modal analysis of electron gun by use of ansys software, we can get the inherent frequency and vibration model, which can avoid sympa - thetic vibration
利用ansys軟體對電子槍進行動力學模態分析可以得到電子槍的固有頻率和振型,從而在結構設計上避免共振。( 3 ) we investigate the nonlinear dynamics of the rotor - ambs system in 1 / 3 and 1 / 2 subharmonic resonances. using the multiple method of scale, the averaged equations of the rotor - ambs system are obtained
( 3 )利用多尺度方法,研究了電磁軸承-轉子系統的1 3亞諧共振和1 2亞諧共振情況下的非線性動力學,得出了兩種共振情況下的頻幅響應方程。It has been shown that : the little indentation which represents the quantum noise of the system appears in the evolution curves ; the quantum noise which is caused by virtual photon field gradually becomes weak when w increases, the quantum noise increases when n increases ; the virtual photon process make the antibunching effect strengthen, make the squeezing degree deepen obviously, and lead to the additional vibration of entropy, the oscillation extent of the additional vibration of entropy increases when n increases and decreases when co or g increase. besides, the quantum dynamics of two coupling atoms interacting with a single mode ligh t field in a kerr medium is studied in this paper ; the influences of the kerr effect on the mean photon number, the degree of second order coherence of field, the evolution of the field entropy and the squeezing effect are also discussed
)的增大,量子噪聲分別減小和增大;虛光子過程使光場的反聚束效應增強,使光場的壓縮程度明顯加深,並引起了附加的「熵振蕩」 ,這種附加「熵振蕩」的幅度將隨著光場初始平均光子數( ? )的增加而增大,隨著光場頻率和原子間耦合系數g的增大而減小。本文還研究了充滿kerr介質腔中「耦合雙原子-單模光場」相互作用系統的量子動力學性質,研究了克爾效應對場的平均光子數、二階相干度、場熵演化特性及光場壓縮效應的影響。Seybert af. crocker mj. moore jwetal. reducing the noise of a residential air conditioner. noise control eng, 1973, 1 ( 2 ) : 79 ? 85
單希壯.空調器室內櫃機噪聲的空氣動力學分析.噪聲與振動控制, 2000 ( 3 )In the mechanical systems, gear driving is one of the most widely used driving ways, so the analysis and control of its dynamics is the focus of the current research
齒輪傳動是機械繫統中應用最為廣泛的傳動形式,其動力學分析和振動控制一直受到人們的重視。The dynamic equation for analyzing torsional vibration of the vehicle drivetrain is established based on analyzing the jointing process of frictional clutches, and the inherent frequency, the response of torsional vibration and the sensitivity of rigidity parameters to inherent frequency are studied
摘要文章在分析車輛最常用的膜片彈簧摩擦離合器接合過程的基礎上,建立汽車傳動系的扭轉振動的力學分析方程;結合實際車型,分析了車輛的固有頻率、扭振響應、剛度參數對固有頻率的靈敏度。Using theory of strength of track structure and vehicle - track coupling vibration dynamic model, we analyze the effects the different thickness of ballast act on relevant track structure parts and deduce the rational thickness of ballast
本文應用軌道結構強度計算理論及車輛軌道耦合振動動力學模擬計算模型,分析了不同道床厚度對相關軌道結構部件的影響,得出了合理道床厚度的建議值。Abstract : based on the bouncing dynamic model & amp; vibration equation established in paper we analyse the damping ratio of vehicle suspension. we discass the stabilation of vibration system when the equivalent damping of shock absorber is zero or negative. we also provide the technology order which makes the system stable and un - corservative
文摘:該文在建立振動動力學模型和運動方程的基礎上,通過對車輛懸架阻尼比分析,就減振器阻尼等效為零或為負時,對振動系統穩定性影響及產生原因進行了探討.提出設計和製造過程中有效控制系統穩定和非保守特性的技術路線Based on the bouncing dynamic model & vibration equation established in paper we analyse the damping ratio of vehicle suspension. we discass the stabilation of vibration system when the equivalent damping of shock absorber is zero or negative. we also provide the technology order which makes the system stable and un - corservative
該文在建立振動動力學模型和運動方程的基礎上,通過對車輛懸架阻尼比分析,就減振器阻尼等效為零或為負時,對振動系統穩定性影響及產生原因進行了探討.提出設計和製造過程中有效控制系統穩定和非保守特性的技術路線Then, the phase - space equations is presented based on the two - mass - oscillator dynamic equations, taking the relative velocity as the factors, to get the criterion as how to distinguish the stick phase and slip phase, which give a great convenience to optimize the design, and stability and control strategy. the response is studied following
然後根據二元摩擦振子動力學方程,建立運動狀態方程;並轉化為相對速度狀態量,通過對相對速度狀態量的討論建立判別粘滯與滑動狀態轉換過程及劃分標準,狀態空間的建立為球基微操作器的優化設計,控制理論以及穩定性討論奠定理論鋪墊。分享友人