瞬變溫度 的英文怎麼說
中文拼音 [shùnbiànwēndù]
瞬變溫度
英文
transient temperature-
Flame tube in aircraft engine undergoes high temperature and high speed airflow washing. a hypothesis was suggested, which takes the transient heat transferring as the main reason to the cracking and damage on flame tube. finite element method was adopted to simulate the thermal fatigue and the hypothesis was reproduced
發動機火焰筒的熱疲勞損傷是導致火焰筒失效的主要原因,本文提出了一種火焰筒熱疲勞損傷假設,認為火焰筒熱疲勞損傷不是由於發動機的運行和停車時冷熱溫度循環造成的,而是發動機啟動時瞬態溫度傳導過程中材料循環塑性變形的結果,利用該假設結合有限元計算模擬了火焰筒產生疲勞損傷的原因。The explicit finite element method ( fem ) based on the varying time - step was selected to analyse the dynamic roll - pass process ; the nodes on the leading face of the steady - state elements set was extracted and projected onto a plane to give the required mesh, also called the origin mesh ; the implicit fem was selected to analyses the inter - pass transient thermal process ; a geometric part from the mesh was generated and meshed by using the quadrilateral elements, a heat transfer analysis was selected to transfer the node temperature data ; a new model was created by using hexahedral elements, mapping the node temperature and the equivalent plastic strain on the integration points
利用基於變步長中心差分格式的顯式積分方法分析瞬態軋制過程;提取穩態單元集節點形成截面網格;利用隱式積分方法分析軋制道次間隙瞬態溫度場;對型鋼斷面進行平面四邊形網格劃分並映射節點溫度數據;利用六面體單元構建有限元分析模型,映射單元節點的溫度、積分點的等效塑性應變,進行數值分析。Then after analyzing the heat conduction in laser diode array, we simply simulate the transient thermal behavior of high power laser diode array and build a two dimensional static model of temperature distribution of it by fem ( finite element method )
接著分析激光器陣列中熱的傳導,簡單的模擬工作工程中瞬態溫度的變化。然後通過有限元分析法,建立二維溫態分佈,得到穩態工作時,大功率激光器陣列中晶元和載體的溫度的空間分佈。Calibration of vibration and shock pick - ups - method of test for transient temperature sensitivity
振動和沖擊傳感器的校準.瞬變溫度靈敏度的試驗方法Methods for calibration of vibration and shock pick - ups. testing of transient temperature sensitivity
振動與沖擊傳感器的校準方法瞬變溫度靈敏度測試法Firstly, a finite element approach combining the temperature parametric method with real fictitious elements scheme was proposed for simulating the winding tension process ; secondly, in accordance with the cure kinetic and heat transfer theory, a corresponding finite element method was employed to calculate the distributions of temperature, cure degree and thermal stress fields during the cure process
根據固化反應動力學理論和熱傳導理論,對具有金屬內襯的復合材料纖維纏繞壓力容器在固化工藝過程中瞬態溫度、固化度和熱應力場分佈及其變化規律進行了數值分析。The transient temperature and thermal stress distribution in disk of heat capacity laser pumped by high power lda are simulated by use of finite element methods, optical distortions and birefringence were computed subsequently
摘要利用有限元數值方法,模擬計算了熱容模式下片狀激光介質的瞬態溫度分佈和熱應力分佈及其波前畸變和應力雙折射。Based on a 3 - d transient thermal model with inhomogeneous heat generation, the temperature and thermal stress distribution in the disk of heat capacity laser pumped by high power laser diode array ( lda ) are simulated and analyzed by means of finite element methods
摘要為了研究激光介質熱畸變對固體熱容激光器的影響,數值計算了高功率激光二極體陣列抽運片狀激光介質的瞬態溫度場和熱應力分佈。By analyzing and processing bountiful experimental data collected in short time, the curves of temperature variation of fast transient nucleate boiling are then drawn with wavelet analysis theory. also by setting up the mathematical model and applying the temperature variation curves to this mathematical model, heat flux density can be resolved
利用數學方法? ?小波理論成功分離了快速數據採集系統中溫度信號和噪音信號,得到瞬態沸騰的溫度變化曲線;並通過建立數學模型、利用實驗所得的溫度變化曲線,求解出瞬態熱流密度。Also a special diagnosis system for the cylinder scoring malfunction of internal combustion engine has been briefly set up. it realizes the numerical simulation of bi - dimensioned and tri - dimensioned cycling instantaneous temperature field for the diesel engine type 4135 and the simulation animated demonstration of the thermal deformation and cylinder scoring malfunction
並且還初步建立了內燃機拉缸故障診斷分析型專繫系統,實現了4135柴油機二維、三維循環瞬態溫度場的數值模擬、熱變形和拉缸故障的模擬動畫演示。Transient temperature field comes from changes of boundary conditions and the heat which is produced by the concrete chemical reactions with the water during the mass concrete pouring
由於混凝土澆灌時產生的水化熱和澆築過程中熱邊界條件變化而產生瞬態溫度場,這種溫度場對結構施加時變溫度載荷。In the second part, considering the depress of the stiffness of concrete caused by its transient thermal strain under fire, the current formulas can be conducted, and then the formulas to calculate the internal force and deformation of rc frame under fire can be conducted by structure mechanics
( 2 )受火構件等效成常溫構件后,再對火災高溫下混凝土瞬態熱應變導致的軸向剛度降低進行修正,推導了受火樑柱的剛度降低修正計算公式,基於結構力學矩陣分析法推導了受火構件的溫度內力和變形計算公式。The engine ' s transient pressure, temperature and its various components emissions are traced in details during the calculation. the results verified that the various steps quasi - dimensional two - zone combustion model developed in this thesis can describe the real working procedure of the internal combustion engine very well
模擬模擬過程詳細跟蹤了缸內瞬時壓力、溫度和排放量組分變化,結果顯示,本研究所提出的雙區準維燃燒模型能較好的反映缸內的實際工作過程。Using numerical simulation method, detailed dynamic pressure variations, transient gas temperature and mass flow rate in the ptr, and the coefficient of performance of ptr and the exergy losses of all parts of ptr were obtained
用數值模擬方法得到了製冷機內部各點的壓力、溫度、質量流率等參數的瞬時變化情況及整機的製冷系數,並得到了製冷機各部件的(火用)損失及整機的(火用)效率。In the article, the mechanism of temperature field has been researched and the math model of 3d unsteady temperature field is established according to analyze the cracking reason, produce mechanism of temperature crack, the specialty of crack in mass concrete. the thermal conduction equations are converted into extremum of functional analysis through calculas of variations
本文通過對大體積混凝土裂縫的成因,溫度裂縫的產生機理,溫度裂縫的特點,研究了大體積混凝土溫度場機理,建立了數學模型,並用變分原理將三維瞬態溫度場的熱傳導方程問題轉化為泛函的極小值問題。As mentioned in the introductory section, there is also an intermodulation effect caused by the minute temperature changes in the filament
正如我們在介紹部分提到的,還存在一種由於燈絲瞬時溫度變化而導致的互調效應。Numerical simulation of 3 - d transient temperature field during continuous yag laser transformation hardening process
激光相變硬化三維瞬態溫度場數值模擬By investigation of radiating spectrum of matter with transient shock compression, we not only can measure the temperature of matter, but also can know the object equation of matter, and we can know the microstructure of atoms and molecules of matter and their interacting with shock compression
通過對瞬態沖擊壓縮材料輻射譜的研究,可以實現材料瞬態溫度的測量,從實驗上確定材料的物態方程,有助於我們了解沖擊波作用下,材料的原子、分子微觀結構及其變化過程。Based on the thermo - mechanical coupling models, the fem simulation on laser bending of sheet metal has been conducted with the consideration of temperature dependency
摘要考慮物性參數與溫度的相關性,將三維瞬態溫度場與熱彈塑性形變場耦合,對激光誘發的熱應力彎板過程進行了動力顯式有限元模擬並定量地揭示了其成形機理。Abstract : by using 2 - d finite element method ( fem ) and experiment, the phenomenon of heat conduction in tc11 ti alloy compressor blade is simulated and analyzed during the post - forge cooling course, and the time _ variation characters and distribution laws of transient temperature fields of every airfoil section are obtained
文摘:運用二維有限元法和試驗方法,模擬、分析了tc11鈦合金壓氣機葉片鍛后冷卻過程的傳熱現象,得到該葉片各個翼形截面上瞬態溫度場的時變特性和分佈規律。分享友人