穩態頻率響應 的英文怎麼說
中文拼音 [wěntàibīnlǜxiǎngyīng]
穩態頻率響應
英文
steady state frequency response- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 態 : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
- 頻 : 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 : 率名詞(比值) rate; ratio; proportion
- 應 : 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
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At first, the dynamic mathematic model is created in the light of the known dimensions and structure. then base on the mathematic model, dynamic analysis of the system is studied by drawing the open - loop bode diagram closed - loop bode diagram and step response curve using the analysis and calculating function of matlab. the influence factor on frequency character steady and performance of the system is also analyzed
首先,根據已確定的尺寸參數和結構需要,計算並建立起系統的動態數學模型,然後在已知系統數學模型的基礎上,利用matlab語言強大的分析計算功能,對系統進行動態分析,通過畫出系統的開環bode圖、閉環bode圖及系統的階躍響應曲線,分析了系統的頻率特性、穩定性及系統性能的影響因素。Igbt power modules, 25khz inverterfrequency, fast response time, high arc stability, almost spatter - free welding
採用igbt模塊,逆變頻率達25khz ,動態響應速度快,穩弧性能好,焊接飛濺極小。Igbt power modules, 18khz inverter frequency, fast response time, high arc stability, almost spatter - free welding
採用igbt模塊,逆變頻率達18khz ,動態響應速度快、穩定性能好、焊接飛濺極小。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,建立振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振動形態和所需的頻率等參數;然後此基礎上再進行力學模型的穩態響應分析,研究該模態下機構的振幅分佈,以確定模型設計的準確性。In this paper, we study inversionless lasing of frequency up - conversion in an open v - type system with incoherent pump. making theoretical analysis and numerical calculation by density - matrix equations of motion, we derive the conditions for the onset of lwi and discuss the effects of the parameters of the system, the detuning of driving field and probe field on the gain, and discuss nonlinear effect in the frequency up - conversion regime. we also give stability and transient analysis
本論文研究了具有非相干泵浦的開放v型系統頻率上轉換無粒子數反轉激光,利用密度矩陣運動方程,通過理論分析和數值計算,得出該系統產生無粒子數反轉激光的條件,討論系統各參數的變化和驅動場與探測場的失諧對激光增益、色散和粒子數差的影響,還討論了頻率上轉換區域的非線性效應,分析了增益的穩定性及系統的瞬態演化過程。The frequence and modal of main stream piping were analysed under the condition of different velocity of stream and the valve taken as the centralizing mass. this paper also gives the responses of steady state under the condition that the frequency of forced vibration is 4hz 、 8hz 、 12hz respectively
將閥門作為集中質量處理,分析計算不同蒸汽流速下,某汽輪機主蒸汽管道系統的振動頻率和振型,並給出了激振力頻率分別為4hz 、 8hz 、 12hz時該管道系統的穩態響應。In first part of the thesis, by a review of the research on aircraft sonic fatigue, the formulas for calculating natural frequencies of the typical aircraft skin - panel structure with four edges simply - supported or four edges fixed - supported were drawn, the response of displacement and stress was analysed under the condition of random white noise loading with the steady - state or unsteady - state. the procedure how to use data of s - n curve under constant loading for predicating the fatigue life of skin - panel subjected to random loading was shown
通過對聲疲勞問題研究的回顧,根據典型飛機蒙皮壁板模型,整理了四邊固支,四邊簡支兩種邊界條件下多階模態固有頻率,非平穩及平穩隨機白噪聲載荷下的位移和應力響應,以及如何從等幅s ? n曲線求得隨機載荷應力下的疲勞壽命。In chapter 3, the non - linear equation was linearized with the jacobi matrix, and then the linearized equation was transformed into fixed frame to analyze the stability problem with eigenvalue method ( on - ground or hovering ) or floquet theory ( forward flight ). meanwhile, the equation was perturbed by sweep frequency excitation from steady state to get transit decay of lag response which was then transformed into fixed frame with a numerical fourier coordination transformation ( fct ). the fixed frame response along with the body response was analyzed via an fft to determine modal frequencies
然後,在穩態響應的基礎上利用雅各比矩陣對非線性方程進行了線化,線化后的方程利用多槳葉坐標變換轉換到固定系下后,利用直接特徵值分析(地面、懸停)或floquet理論(前飛)對系統進行了穩定性分析;同時,對系統進行了瞬態響應分析;在系統達到穩態的基礎上進行掃頻激勵,用fft變換求得系統頻率,進而用移動矩形窗方法分析得到系統的阻尼。Since the frequency response is a steady - state response, the system must be stable and its stability must be determined before the system bode plots can be used
因為頻率響應為穩態響應,所以系統必須是穩定且其穩定性必須在繪制伯德圖之前確定。Aiming at the nonstationary characteristic of the dynamic loads and the relation between the responses and the frequency response functions, by use of the responses only, some novel theories are conducted to develop force identification and impact location approaches in this dissertation
本文就動態載荷的非平穩特性對有關前沿理論作了系統研究,著眼于結構響應輸出與頻率響應函數間的關系,建立了一類單獨利用響應數據進行動載荷及其位置識別的新穎理論體系與方法。分享友人