振幅頻率響應 的英文怎麼說

中文拼音 [zhènbīnxiǎngyīng]
振幅頻率響應 英文
amplitude frequency response
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ名詞1. (布帛、呢絨等的寬度) width of cloth 2. (泛指寬度) width; size 3. (姓氏) a surname Ⅱ量詞(用於布帛、呢絨、圖畫等)
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
  • 頻率 : frequency; rate
  1. 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,簡諧特性,隨機的功譜密度,以及沖擊的最大值和恢復時間等。
  2. Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile

    將其解析解與具體的的抗震設防烈度和場地特徵周期結合起來,計算分析了成層地基中單樁的橫向地震,得到了以下結論: 1 )上部結構慣性力對樁的橫向地震的影不可忽略; 2 )成層地基中的單樁的橫向地震主要受地震基本加速度、場地特徵周期、上部結構質量的影,隨地震基本加速度、上部結構質量的增大而增大;場地特徵越接近樁基自,樁基地震越大,等於自時,由於發生共現象,樁基值最大; 3 )樁土剛度比越大,樁土之間的相對位移的值越大; 4 )樁頂固接的連接方式,可以有效地降低地震時單樁的橫向地震
  3. Its principle is : a laminated structure ( beam or plate ) with delamination consists of undelaminated region and delaminted region which can be divided to upper and lower parts. when a low - amplitude and high - frequency excitation has the frequency close to some part ' s natural frequency, this part will resonate and certain amount of mechanical energy will convert to heat so that the delaminated region ' s temperature exceeds greatly that of the undelaminated region. therefore the delamination can be located by means of infrared thermograph

    其原理是具有脫層的層合材料構件(梁或板)包含脫層區域及未脫層區域,脫層區域分為上下兩部分,若對層合材料構件施加小、高動激勵,當激勵恰好接近其中一部分的固有時,該部分就會產生共,部分機械能將轉化為熱能,使脫層區域的溫度遠高於未脫層區域,藉助紅外熱像儀即可顯示出脫層的位置。
  4. 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增強,使光場的壓縮程度明顯加深,並引起了附加的「熵蕩」 ,這種附加「熵蕩」的度將隨著光場初始平均光子數( ? )的增加而增大,隨著光場和原子間耦合系數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的影
  5. Effect on the characteristics of fatigue life of composite soils and dynamic modulus were discussed. the deformation behavior of stabilized soil on static and dynamic loading were compared. the characteristics of frequency spectrum of composite soils were analyzed in the thesis

    對水泥?水玻璃加固土進行循環荷載下的疲勞試驗研究,分析水泥?水玻璃加固土的疲勞壽命及其影因素,以及固結土的動模量特徵,並對水泥土在動、靜荷載作用下的變形特徵進行比較,分析對比不同的動荷載作用下的水泥加固土的及其譜特性。
  6. Analysis software. the analysis show : the gyroscope effect to the flywheel rotor ' s and the shaft ' s vibration character under high rotate speed should be considered. at this time, the system ' s normal frequency is the function of rotate speed ; the amplitude passing through the resonance field can be lowered obviously by improving the effective damping of the electro - magnetic bearing

    建立了高速旋轉狀態下,採用磁軸承作支撐的飛輪轉子和轉軸的動力學模型,給出了有限元法在此問題中的具體用,並利用i - deas有限元分析軟體具體分析了飛輪系統的共、系統型,以及對偏心激勵的,分析表明:對于高速旋轉的飛輪轉子和轉軸,考慮陀螺效對其動力學特性的影,此時系統的固有是轉速的函數;通過提高磁軸承的等效阻尼可顯著降低系統通過共區域時的
  7. 3. according to the principle of the finite element method, the research establishes finite element models of the vibration transportation mechanisms, some model parameters such as the frequency and vibration type are confirmed and validated by the modal analysis, then which analyzes dynamic - state response of the model and confirms the swing distributing of the models, thereby make the design of models precise. 4

    根據有限元法的理論,建立動機構的有限元力學模型,對該力學模型進行模態分析,通過模態分析確定拋秧機動形態和所需的等參數;然後此基礎上再進行力學模型的穩態分析,研究該模態下機構的分佈,以確定模型設計的準確性。
  8. At large attack angle the frequency of the vortex has n ' t a apparent zone of " lock - in ". the fluid - induced vibration at large attack angle belongs to the stable dynamic response problems. but a sudden skip of amplitude will occur at large inlet velocity

    在大攻角下分離渦脫落的沒有一個明顯的鎖定區域,流體動屬于穩定的動力問題,但在大來流速度下會出現突跳的現象。
  9. It is shown by structural seismic response of four wavelets that littlewood - paley wavelet is not suitable for structural seismic response, because structural response is too small, meyer wavelet is a better wavelet for structural seismic response, for it ' s structural response is agreement with the finite element method, and also harmonic wavelet, structural response under earthquake is a little bigger than finite element method, structural response under odd exponent wavelet is also bigger than finite element method, this method is very simple by wavelet transform, wavelet transform method is different from old methods, one is with which not only knows the effects of earthquake wave detail frequency - band on structural response, but also considers earthquake wave ' s non - stationary of frequency and time - domain value, another is the second mode shape and higher mode shape response that do n ' t attenuate so fast

    通過對這四種小波的結構地震反分析研究說明: littlewood ? paley小波不適合於用來作結構地震反分析,因為在littlewood ? paley小波下的結構地震反太小,不符合實際情況;用meyer小波作結構地震反分析比較合適,和有限元法的結果比較接近;也可以用諧波小波來作結構地震反分析,只是在諧波小波下的結果略為偏大;單邊指數小波下的結構地震反分析比有限元法稍大一點,它通過小波變換大大簡化了結構地震反分析。用小波變換方法來進行結構地震反分析和以往方法不同的是:它不僅可以知道地震波的具體段對結構反的影,而且同時考慮了地震波的值非平穩性以及非平穩性;另外與以前方法得到的結果有差異的是,第二型及以後的高一點的型的反沒有以前的方法衰減得快。
  10. When the frequency approaches zero, the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero. moreover, with the increase of, the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups. moreover, the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other

    得到了以下結論: 1 )樁的相互作用因子隨呈周期性變化,在比較低的情況下,樁的橫向相互作用因子也較低,當趨近於零時,相互作用因子也趨近於零; 2 )樁的相互作用因子的值隨瑞利波入射角度的變化而變化,在= 0情況下值最大,且隨入射角度的增加,波動的周期明顯縮短; 3 )樁的相互作用因子的值隨著樁與樁間距的增加而減小,至s d = 15時,樁的相互作用因子基本趨近於0 ; 4 )在比較低時,相互作用因子值隨樁土相對剛度比的增加而顯著增加; 5 )樁頂固接可以有效地降低群樁的橫向地震值,由瑞利波產生的群樁效可以忽略不計; 6 )群樁中不同樁位的樁的橫向地震是不同的,每根樁所在的樁位對其橫向地震有很大的影;刀樁數的增加並不能減小樁的橫向動力
  11. The experimental results show that the method can accurately extract variable amplitude and frequency order in time domain, and is suitable for vibration response character extraction of rotating machinery

    實驗結果表明,該方法能夠在時域中準確地提取值和變化的階比,適合於旋轉機械特徵提取。
  12. In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll

    研究表明:在某些范圍內相關水動力系數基本不隨吃水變化,只有超過某一后水動力系數的值才會出現差異;在橫搖方向,水動力系數並沒有隨著吃水的變化發生規則變化,而是出現了波動現象;近船首剖面的水動力系數計算表明,水動力系數的波動非常大,並遠遠偏離了平均位置的水動力系數值,值的變化速也不盡相同,總的看來,上曲線曲較大,變化較快,下曲線曲較小,變化較慢;外飄力和波面運動的速度的平方項有關,導致其和相運動方向的不同;外飄力使升沉向下運動的值減小;船速對三個計算量的峰值影甚微,但對有明顯影;波對船舶運動的影是明顯的,船舶運動的值基本上和波成線性關系。
  13. In view of at present on the solid bridge the high - damping rubber dampers use the press capability of high damping rubber, the material utilization ratio is low, in this paper, the high damping rubber shearing damper has been put forward. by way of shearing capability trial of the high damping rubber damper test objects, the effects of laws concerning frequencies, temperatures and layer ' s thickness on the behavior of the damper are obtained ; and one kind of simple and convenient design method of high damping rubber shearing damper has put forward. finally high - damping rubber shearing damper is in simple comparison with viscous shearing damper

    鑒于目前實橋上高阻尼橡膠圈是利用的高阻尼橡膠的擠壓性能,材料利用低,本文提出了剪切型的高阻尼橡膠減器,通過高阻尼橡膠減器試件剪切性能試驗,獲得了值,厚度等各種參數對高阻尼橡膠減器試件的影規律,並提出了一種簡便的高阻尼橡膠剪切型拉索減器的設計方法,最後並與粘性剪切型阻尼器做了簡單比較。
  14. The characteristics of the intrinsic frequency distribution of the framed steam turbine - generator set foundation are summarized ; it can been seen that the base plate of the framed foundation does not have much effect on the dynamic response of the foundation, and that the " amplitude method " is better than the " resonance method " among dynamic analysis methods. when designing a framed foundation, as long as the load - bearing capacity and stability is ensured, a flexible pillar is better, the amplitude of vibration can be controlled through adjusting the particle quality in foundation design

    論文最後總結了框架式汽輪發電機組基礎固有的分佈特點;指出框架式基礎底板本身對基礎的動力不大,認為動力分析方法中法優于共法;並指出框架式基礎設計時,在滿足承載力和穩定性的前提下,柱子以柔為佳;設計中可以通過調整質點的質量來達到控制基礎的目的。
  15. With the data recorded by computer, the author studies the experiment progress in detail, which includes the development of pore press, strain, strength of the sand, etc. connecting the development of these phenomena with the development of stress path, the author finds new mechanism which can explain the phenomena in the experiment. what is more, according to the dynamic test of the sand, there appears a steady state at the last phase of the development of strain and stress path, in which the strength of the sand is studied because it is an important parameter in evaluating the stability of sand against liquefaction. secondly, the dynamic constitutive relation was studied through the dynamic tri - axial test

    本文首先採用目前國內較先進的微機控制動三軸儀,利用其可以適時採集和儲存數據的優勢,對砂土的實驗過程進行了細致的分析,研究該過程中孔隙水壓力發展、軸向變發展以及它們與力路徑之間的關系,對飽和砂土的剪脹、剪縮和卸載體縮等多個方面進行了研究,探索了砂土的動力特性,分析了影砂土抗剪強度的各種因素,這些因素既包括土本身的特性(土的密度、結構、級配、透水性以及初始狀態等) ,又包括動荷載的特徵(動力值大小和等) 。
  16. By means of measured dynamic responses of the hydraulic generator at fengman hydropower plant, the indentification algorithm identifies the loading parameters which include the main frequencies, phase differences and amplitudes of vibrating forces

    根據在豐滿水電站現場觀測的水輪機數據,識別出了水輪機在不同運行狀態下的動荷載參數,其中包括動力的、相位差和值。
  17. In this paper, the evolution equations of the parameters of the optical soliton pulses were derived by means of variational method, in order to investigate the influence of the fifth - order nonlinear effect on the transmission properties of optical soliton in the coupling fiber, and the effects of the fifth - order nonlinearity were discussed on amplitude, frequency band width, chirp, frequency, center position and phase

    摘要運用變分法導出五階非線性作用下孤子的參數演化方程組,研究五階非線性耦合光纖中孤子的傳輸特性,討論五階非線性效對孤子的寬,啁啾,,中心位置及相位的影
  18. In order to research mechanical capability of the reinforced concrete beam with bonding steel plate, adopting separate method to establish finite element model of the reinforced concrete beam with bonding steel plate, using fem to study dynamical characteristics of the model, have got good results which can not be easily got using traditional resolution method, which can give reference to study dynamical characteristics of the reinforced concrete beam with bonding steel plate

    摘要為了研究粘鋼加固后鋼筋混凝土梁的各種力學性能,採用分離式方法建立了粘鋼加固后鋼筋混凝土梁的有限元模型,並用有限元方法對此模型先後進行了模態分析和簡諧集中載荷作用下的動力分析,得出了加固后鋼筋混凝土梁的前5階動模態和簡諧集中動荷載作用下粘鋼加固鋼筋混凝土梁底部開裂的極限動載荷曲線,可為研究粘鋼加固鋼筋混凝土梁的各種動力特性提供參考。
  19. The amplitude - frequency response equations and the local bifurcations are respectively analyzed in the two resonant cases. the numerical simulations are given to obtain the amplitude - frequency response curve

    利用數值模擬方法得出了1 3亞諧共和1 2亞諧共情況下的局部分叉和-曲線。
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