振型平衡法 的英文怎麼說
中文拼音 [zhènxíngpínghéngfǎ]
振型平衡法
英文
method of modal balancing- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 平 : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
- 衡 : Ⅰ名詞1 (秤桿) the graduated arm of a steelyard2 (稱重量的器具) weighing apparatus3 (姓氏) a...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
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For a class of series - wound active power line conditioner the design approach law of a new fuzzy integral sliding mode variable structure control is presented. this method adjusts power electronic switch in order to achieve anticipated balance volt, finally makes active power line conditioner not only possess good robustness of variable - structure control and decrease vibration to the most but also increase the steady state precision. series - wound aplc adopted this control method possesses good dynamic and steady state performance
針對串聯型有源電網調節器運用變結構控制策略,調節電力電子開關模式,以獲得預期的平衡電壓,對串聯型有源電網調節器提出了模糊積分變結構控制方法,使串聯型有源電網調節器既保持了常規滑模控制強魯棒性的優點,又減弱了滑模控制的抖振,提高了系統的穩態精度,使系統具有良好的動態和靜態性能,模擬試驗表明該控制策略是一種十分有效的控制方法。Modal bode plot theory for diagnosing the rotor imbalance axial position and rotor imbalance type is presented based on advanced rotor dynamics theory and field balancing rotating machinery theory and comprehensive experience of field balancing steam - turbine generator set
摘要基於轉子動力學理論、汽輪發電機組軸系現場動平衡理論和工程實踐經驗,提出可直接判斷軸系不平衡軸向位置及不平衡型式的振型波特曲線方法。The dynamic model of misaligned rotor - bearing system equipped with a flexible laminated membrane coupling was developed by using the method of lumped parameter in this dissertation, and the dynamic behavior, such as the nature characteristics, stability, steady state response of the system, etc. was analyzed based on the theory of linear vibration
本文根據集總參數法建立了膜片聯軸器耦合的不對中轉子?軸承系統的動力學模型。基於線性振動理論分析了系統的固有特性、穩定性和不平衡響應。Through theoretic reckoning and simulating analyzing, several control strategies for shunt apf were compared and chose ip - iq arithmetic of the instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. two topologies of main circuit were compared and chose the three - phase voltage - source converter with a split - capacitor as its main circuit structure
通過理論計算和模擬分析,比較了並聯型apf的幾種控制策略的優點和缺點,從中選擇瞬時無功理論控制策略i _ p - i _ q計算方式為指令電流產生的演算法,並在此基礎上增加了抑制系統諧振和平衡直流側電容電壓的控制;比較了並聯型apf主電路的兩種常見形式,從中選擇了三相電壓型變流器的主電路形式;算出適合該apf的直流側電容和出線電感的參數;設計出能有效消除apf產生的高次諧波的高通濾波器。( 3 ). the flattening arithmetic of an edfa was presented based on the inter - correlative function between the gain spectrum function of the edfa and that of the reserve transmission spectrum of the lpfg. for optimal matching between the two spectra, the flattening arithmetic calculates the variation of the resonant amplitude and wavelength of the lpfg
Iii .提出了一種動態增益均衡的平坦演算法,這種演算法的本質就是利用摻鉺光纖放大器增益譜函數和新型長周期光纖光柵的透射譜反轉譜函數的相關性,給出新型長周期光纖光柵諧振峰幅度和位置的調節量,使改變后的新型長周期光纖光柵的反轉譜線能和edfa的增益輸出譜線進行最佳匹配。A mathematical model is developed to comprehensively describe and analysis the vibration of over - head transmission lines according to pertinent datum. based on the model , an optimum solution about the conductor - damper system is put forward to by means of the analysis of possible anti - vibration designs. a method of balance - energy is used to acquire the frequency - respondence features of the conductor - damper system under the function of breeze ; a cad software is presented and developed in terms of above approaches. the model applied in the thesis is comprehensible and considerate, and the results from the model are close to the data from experimental site. beside these, favourable interactive operational capability makes it possess more practical and economic value
通過分析有關資料,建立了普通檔距導線微風振動系統的防振數學模型,並在該數學模型的基礎上,對防振結果進行了優化分析,得到了防振系統的解,用能量平衡原理,得到系統在微風作用下的頻響特性;採用這種方法設計了普通檔距防振的計算機輔助分析軟體。所採用的分析方法對微風振動的影響因素考慮全面,所求結果與現場實驗觀測中的數據比較接近,且人機交互操作性能良好,有一定的工程實用價值The compute model of shafts of the machines is built by adopting concentrated mass method. taking into account the different support conditions of the shafts that workshop is considered as rigidity or elasticity ; the natural characteristic and unbalanced response of the shafts are computed by integrating with high stable riccati transfer matrix method
採用集總質量法對機組軸系建立了計算模型,並結合穩定性良好的riccati傳遞矩陣法,分別考慮機組軸系的支撐基礎(廠房)為剛性、彈性兩種情況,計算了機組軸系的自振特性、軸系的不平衡響應。Method of modal balancing
振型平衡法The engineering result confirms that the proposed method is better than the other wavelet methods for matching fault feature of mechanical signal, and the weak impact - rub fault caused by the axis misalignment and rotor imbalance of a key rotating machine in an oil refinery are desirably extracted
工程振動信號分析表明,同其他類型的小波相比,用提升方法構造的小波能更好地匹配機械信號故障特徵波形,因此較理想地提取出了某煉油廠重催機組轉子不平衡、軸系不對中和輕微碰摩的故障特徵。The monitoring sites and the signal types of various common faults are illustrated for early diagnosis, including misalignment or off balance of the rotor, shaft bending, loosing of a part, fluid induced vibration and damages of rolling - bearing or gear, etc
闡述了振動測試點和測量信號類型的選擇方法,給出諸如轉子不平衡、軸彎曲變形、轉子不對中、部件松動、流體誘發振動及滾動軸承、齒輪損傷等常見故障的診斷方法。A detailed model of non - linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non - linearity are considered, is proposed in this paper. based on several numeric examples investigated by the galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived
本文創新地提出了斜拉橋拉索-橋面耦合參數振動模型,推導了索-橋耦合非線性參數振動方程組,聯合galerkin法及數值積分方法,對各種特性的拉索進行了數值求解,得出了影響拉索參數振動的各種因素;提出了斜拉索受軸向端激勵參數振動模型,導出了模型的非線性振動方程,使用諧波平衡法得出了產生參數振動需要的最小激勵幅值、共振時瞬態及穩態的振動幅值及索拉力的變化特性,並用數值積分方法對實際斜拉橋拉索進行了計算,分析了拉索阻尼對參數振動的影響。With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization
採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數,首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬,分別分析了tm _ ( 011 )和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響;應用於小型化mpt時,指出了小型化設計參數的合理選取,即:小型化后的mpt ,喉徑小、工質流量小,消耗的微波功率也小。It can also determine the fault spot and reason. this technology has been used in some technological fields and proved efficient. it has promoted the revolution of maintance system and the historial protection is replaced by preventive maintenance. with this technology, we can improve the reliability of machine and decrease the maintance fee. recently, reserch has pick up a fervent pace in the area of fault diagnosis of electrical machines. the paper simply analyzes the fault reason of electrical machines, stressly describes and explores the methods of condition monitoring and fault diagnosis such as partial discharge, stator current, rotating speed, vibration etc. fault prognosis is now include diagnostic feature, reason, spot. prodigious improvement in signal processing hardware and software has made this possible. primarily, these techniques depend on locating specific harmonic components of the fault. these harmonic components are usually diffirent for diffirent types of faults. automated tools such as fuzzy logic based system is also simply presented in the paper
本文從絕緣結構的故障機理入手,以絕緣結構故障的典型特徵? ?局部放電為研究對象,重點討論局部放電的在線監測方法、適用場合併比較它們的優缺點;在分析籠型異步電機轉子斷條在線監測的定子電流監測方法后,根據其缺陷,本文探討了溫升不平衡法、希爾伯特變換數字濾波、小波包分析法的原理及優點;以電機軸承、氣隙偏心等故障為研究對象,通過對電機振動和轉速頻率的檢測,診斷電機的故障類型;本文的重點工作是將人工智慧技術中的模糊技術應用於電機的狀態監測和故障診斷中,力求使電機故障診斷更接近人工智慧化;最後,本文對電機狀態監測和故障診斷系統進行了硬體和軟體初步設計,為實現預測維修提供了有效的技術手段。分享友人