pressure transient 中文意思是什麼

pressure transient 解釋
壓力瞬變狀態
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  • transient : adj 短暫的，一時的；過渡的；匆匆而過的；易逝的；虛幻的，無常的 （opp lasting permanent）; 【物理...
  1. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  2. Time - dependence of the mathematical model is taken into account, and time - dependent form of pens is deduced. 5. numerical analysis of heat and mass transfer in the adsorbent bed is presented, transient distribution of pressure, temperature, velocity and adsorption in it is obtained

    對吸附床的傳熱傳質規律進行了數值分析，獲得了吸附床內部的瞬時溫度壓力、吸附質速度、吸附率分佈，並通過實驗數據驗證了數學模型。
  3. Live - loading of bonnet bolting stores the required sealing load during a pressure or temperature induced transient

    在壓力或溫度不斷波動轉換的情況下，動負載閥帽螺栓儲存了所需要的密封負載。
  4. Since the departing process of fire work departing installation is a highly nonlinear transient dynamic process, it relates to many speciality field, and the characteristic of the material is very complex under the highly rate and highly pressure distortion, the design methods and the design formulae by experience which has been used for a long time are very limited, the facter which truly affect the departing process of fire work departing installation cannot been reflected in the design calculation, the structure modelling and optimization of the fire work departing installation is cannot been carried out by the traditional optimization method

    由於火工分離裝置的分離解鎖過程是一個高度非線性的瞬態動力過程，涉及多個學科和專業領域，而且材料在高速高壓條件下瞬時性態十分復雜，長期以來所沿用的經驗設計方法和設計經驗公式的局限性很大，對火工分離裝置分離解鎖過程一些實際有影響的因素不能定量地反映到設計計算中來，採用傳統優化方法無法實現火工分離裝置的結構優化建模和計算。
  5. In the hydraulic transmission systems, after the valve is suddenly open and shut off, there will be a fluid transient in the form of pressure pulsation propagating along the pipeline

    液壓系統中，閥門的快速開啟或關閉會在管路中發生壓力瞬態脈動過程。
  6. Gasket deforms during hydrotest, bolts lose torque and must be retightened after hydrotest. ( pressure / temperature transient or frequent cycling produces similar mechanical action in valve

    在水力測試時，墊圈會變形，螺栓松動，因此在水力測試后必須加以緊固。 （壓力/溫度轉換或周期循環在閥門上產生相似的機械作用。 ）
  7. By use of - perturbation method with spatial discretization, the hydraulic transient system controlled by quasilinear partial differential equation was converted to a time - continuous linear system, so that the inverse problem of hydraulic transients under limited pressure could be sol ed with the optimal control theory for time - continuous systems

    採用-攝動法並經過空間離散，將由擬線性偏微分方程式控制制的有壓瞬變流系統轉化為時間連續線性系統，從而使有壓瞬變流限壓控制反問題能應用時間連續系統最優控制理論來求解。
  8. Gas thermal insulation coefficient under different transient flow in pressure pipeline system has been studied through physical experiments and theoretical analysis on thermodynamics

    本論文通過物理試驗與熱力學理論分析對不同瞬變過程中有壓輸水管道內氣體的多方指數n的變化規律進行了研究。
  9. Based on the analysis of pressure transient change within the oil transfer pipeline, a real time pressure model of oil pipeline is set up. software and hardware of the diagnosing system for leak detection & location were developed and the indoor experiment as well as site test was performed

    本文對輸油管道壓力瞬變過程進行了分析，建立了管道壓力實時模型，研製出輸油管道的泄漏故障實時診斷系統的軟、硬體，完成輸油管道泄漏檢測及定位的室內試驗和現場試驗。
  10. The transient cfd simulation including the spiral case, stay vane, guide vane, runner vane and draft tube at different operation points is studied fitly, then the result of the pressure distribution on runner blade is provided for the runner transient structural simulation by fluid - structure interaction ( fsi ) method

    文中首先對高水頭小負荷的渦帶工況下混流式水輪機內流場進行非定常cfd計算，得到渦帶工況下葉片表面不同時刻的水壓力載荷，並利用流固耦合方法對轉輪進行結構場瞬態特性計算，分析轉輪葉片的動應力特性。
  11. The calculation model of hydro - mechanical transient in existence was deeply studied and the conclusion is that, for kaplan turbine and pelton turbine, neglecting differences of dynamic mater pressure along the turbine spiral case during transient may cause some error in the calculation of pressure rise and speed rise

    本文深入研究分析了軸流式和沖擊式機組過渡過程計算的現有模型，指出現有模型中對蝸殼（進水管）部分的處理方法會給這兩種機組的過渡過程計算帶來相對較大的偏差。
  12. Based on the theory of fluid dynamics. transient - flow and vibration, the structure parameters of the air - volume ( such as the volume and position of the air - volume ) affect the pressure oscillation in piping system is put forward, and the designing method for the parameters of the air - volume according to the role of the air - volume is provided

    本文根據流體力學、瞬變流以及振動學的理論，研究了管道系統中空氣室結構參數（空氣室的容積，安裝位置等）對壓力脈動的變化規律，提出了根據空氣室工作任務要求設計空氣室的計算方法。
  13. Cfd is also used to get the data of performance parameters of the nozzle at different nozzle pressure ratio, different nozzle area ratio and different geometric defected angle. the theory of function approximation is used to establish the transient model of thrust vectoring with the data calculated

    本文通過cfd計算獲得矢量噴管的性能參數，如流量系數、推力系數以及有效推力矢量角等與矢量噴管壓比、面積比以及幾何偏轉角之間的關系數據，並利用函數逼近理論建立了矢量噴管的動態數學模型。
  14. Based on the combustion model, the intermediate combustion products, the rate of the heat release in the swirl chamber, the engine ' s transient pressure and temperature are traced in details during the calculation

    在此模型基礎上，對發動機缸內燃燒的中間產物、渦流室的放熱率、缸內瞬時壓力和溫度進行了分析。
  15. 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。
  16. 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。
  17. This is very important for the research of engine ' s transient working condition and the pressure fluctuation among each cylinders and different cycles of the same cylinder

    這對于研究發動機的過渡工況及循環間和缸間的工作差異具有重要意義。
  18. Boundary element method for pressure transient analysis of double - porosity reservoir

    雙重介質油藏壓力動態分析的邊界元方法
  19. Although pressure transient and production data analyses have the same governing theory ( and solutions ), we must recognize that pressure transient data are acquired as part of a controlled " experiment, " performed as a specific event [ e. g., a pressure buildup ( or pbu ) test ]

    試譯：盡管壓力瞬變分析和生產數據分析採用相同理論並具有相同解，但我們必須認識到：壓力瞬變數據取自控制實驗的壓力恢復測試。
  20. Although pressure transient and production data analyses have the same [ red ] governing theory [ / red ] ( and solutions ), we must recognize that pressure transient data are acquired as part of a controlled " experiment, " performed as a specific event [ e. g., a pressure buildup ( or pbu ) test ]

    試譯：盡管壓力瞬變分析和生產數據分析採用相同理論並具有相同解，但我們必須認識到：壓力瞬變數據取自控制實驗的壓力恢復測試。
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