振動微擾 的英文怎麼說

中文拼音 [zhèndòngwéirǎo]
振動微擾 英文
vibrational perturbation
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ動詞1 (擾亂; 攪擾) harass; trouble 2 (客套話 因受人款待而表示客氣) trespass on sb s hospital...
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  1. Treating the anharmonic terms of potential energy as perturbations, and employing the formulas for atomic displacements and hamiltonian in phonon occupation number representation, the formulas for thermal expansion coefficients of crystal nano - wires are derived and the numerical calculations are carried out in this paper

    摘要將原子間相互作用勢的非諧項作為,運用聲子數表象中的晶格原子位移和晶格哈密頓公式,推導了納米晶體線的熱膨脹系數公式,並進行了數值計算。
  2. Based on a duralumin flexible beam with piezoelectric films attached, distributed parameter modal described by partial difference equations is builded, and then turned into a set of two order systems with the method of modal analyse. state feedback control and independent modal control is investigated. and simulation of the closed - loop system with thest two methods is performed in matlab

    並用模態分析的方法,將系統的偏分方程模型轉化成了模態模型;研究了狀態反饋和獨立模態方法;進一步完善了軟體界面以及軟體功能;在實際系統中,應用狀態反饋演算法,有效抑制了懸臂梁在受到外界瞬時脈沖和激引起的一階、二階模態
  3. The main features of the apparatus are focus on small volume, light weight, no iron core, no magnetic saturation and no ferreous resonance, moreover, related advantages such as the large range of transient and frequency response, excellent electrical magnetic compatibility, oil - free configuration, reliable insulation structure, are all the trends of current transformer in the future. meanwhile, it should agree with the future power gauge and digital, computer, automatic relay protection. it will meet the demand of digital power network

    它具有體積小、重量輕;無鐵芯、不存在磁飽和與鐵磁諧問題;態響應范圍大,頻率響應寬;抗電磁干性能強;無油化結構、絕緣可靠、價格低等優點;是未來電流互感器發展的方向,是新一代電力數字網發展的需要,適應電力計量和保護數字化、機化和自化發展的潮流。
  4. We have successfully designed an experiment system for the no invasion blood pressure measurement with our own ip. in our research and develop task we have done a lot work to study foreign instrumen and design ideas. this experiment system is based on msp430 series mpu with excellent erformance and applies advanced digital signal process and intelligent technology. in hardware design, the following means were applied : after a lot of experment and fully knowing about the characteristic of the pulse wave signal, we have designed the accurate and credible circuit to collect the pulse wave signal ; power circuit, communicaion circuit, power drivers circuit have been disigned for the instrument. in software design, the following arithmetic were applied : 1

    軟體方面進行了以下演算法研究: 1 .綜合試驗各種數字信號處理方法對波形進行平滑處理: 2 .採用lms自適應方法對脈搏波信號進行了降噪處理; 3 .應用分閉值法提高了脈搏波信號的檢出率,有效識別了運引起的偽波信號; 4 .利用測法基本原理並進行大量實驗的基礎上,提出了比較準確可行的收縮壓和舒張壓的識別演算法,使測法在本無創血壓儀中得到了完整而充分的應用。
  5. The states of the system and their differential signals are obtained on time by tracking differentiator, and the influence induced by nonlinear periodic load disturbance is compensated adaptively

    電力系統混沌蕩狀態和它的分信號由分跟隨器實時提取,並通過分跟隨器對非線性周期性負荷的影響進行自適應補償。
  6. Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic

    文摘:提出壓電諧濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧濾波器存在許多干頻率,從而不能有效濾除一些特定頻率的干信號.為了解決這個問題,提出一種改進型的靜電激勵諧濾波器.為了說明其可行性,具體分析了改進型雙端固支梁靜電激勵諧濾波器,理論推導證實基於雙端固支梁的各階型正交的原理,通過適當調整激電容的間距,雙端固支梁的高階模態受到很好的抑制,因此這種諧濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過
  7. Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic

    提出壓電諧濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧濾波器存在許多干頻率,從而不能有效濾除一些特定頻率的干信號.為了解決這個問題,提出一種改進型的靜電激勵諧濾波器.為了說明其可行性,具體分析了改進型雙端固支梁靜電激勵諧濾波器,理論推導證實基於雙端固支梁的各階型正交的原理,通過適當調整激電容的間距,雙端固支梁的高階模態受到很好的抑制,因此這種諧濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過
  8. This study introduces the energy consistent method ( ecm ), the ecm potential function, and the new formulae of vibrational force constants which are proposed by weiguo sun and hao feng [ 45, 46 ] recently. the ecm is applied to study the diatomic potential functions for some electronic ground states and excited states of gif, ch, bh, xeo, laf, 7lid, na7li, narb and krb molecules. the ecm potentials are compared with the experimental based rkr ( rydberg - klein - rees ) potentials, ipa ( inverted - perturbation - approach ) potentials, analytical morse potentials, and hms ( huxley - murrell - sorbie ) potentials

    本文詳細地介紹了孫衛國和馮灝運用二階理論所導出的高階力常數的求解公式、能量自洽法( energyconsistentmethod - ecm ) 、 ecm勢能函數的定義以及用能量自洽法計算穩定雙原子分子體系勢能函數的具體步驟,並將ecm方法推廣應用於cif 、 ch 、 bh 、 xeo 、 laf 、 ~ 7lid 、 na ~ 7li 、 narb和krb等九種異核雙原子分子的十二個電子基態和激發態的勢能函數。
  9. 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:地面震、車輛或者風等)作用下的響應信號由於受到噪聲干,儀器所能採集到的信號信噪比較低,而且是非平穩信號。
  10. Oscillation for a class of second order nonlinear differential equation with damping

    帶有阻尼項的二階非線性分方程的準則
  11. The research work on the chaos is carried out in chapter 5. the properties of chaos sensitively dependent on the initial conditions and the perturbations are proved and a method of controlling chaos of duffing oscillator is investigated as well. in chapter 6, the bifurcation and chaos of continuous nonlinear systems are researched

    第五章用正規攝法給出了一維非線性分方程的通解,並以此為基礎解析地證明了混沌運對初值的敏感依賴性和對的敏感依賴性,並以杜芬子為例子以驗證,研究了杜芬子的混沌運控制的多諧法。
  12. Simulation of computer and dynamic experiments show : the sofpss has such characteristics as small overshoot, fast response speed, avoidable micro - amplitude oscillation and is not sensitive to changes of operating modes and external disturbances. the sofpss can effectively damp low - frequency oscillation in a large range and takes on strong adaptability

    計算機模擬和模實驗結果表明: sofpss超調小、響應速度快,且避免了蕩;對運行狀態的變化以及外界干不敏感,能夠在較大的運行范圍內有效地抑制蕩,適應能力較強。
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