unsteady load 中文意思是什麼
unsteady load
解釋
不穩定負載-
Thermal stress control system actually gather the real - time data of unit sets ， compute temperature fields ， stress fields and maximum dangerous stress by the math modal ， decide target and speedup rotation in every stage of startup process ， and justify automatically to realize auto control a serial of processes of turbine ， such as speedup ， warm - up ， connecting net ， load changing ， stop and unsteady condition etc ， and improve automatic level of the unit sets. turbine auto startup ( tas ) system can automatically evaluate steam turbine ' s startup and load changing process according to thermal stress of
熱應力控制系統實際是對機組運行參數進行實時採集與監控，通過數學模型實時地計算高、中壓缸轉子的溫度場、應力場分佈，以及最危險熱應力，以確定啟動過程各階段的目標轉數及升速率，並進行自動調整，實現機組沖轉、升速、暖機、並網、升負荷、停機以及異常工況下的自動控制，大大提高了機組的自動化水平。 -
The numerical calculating based on reynolds equation are carried out with the help of computer program built by bearing research institute of xi ' an jiaotong university. the calculating results indicated that three lubricating oil wedge bearing with an end - to - end through gap between the horizontal combine surfaces will not be unsteady factor when the bearing load no change. but the horizontal oil film rigidity will reduce and the working position of axle journal in the bearing will change
論文利用雷諾方程對# 5軸承的三油楔水平中分軸承進行了數值計算，計算結果表明，當三油楔軸承水平中分面有貫通的縫隙而軸承的載荷不變時，三油楔軸承不會失穩，但會減小水平方向的油膜剛度，改變軸頸在軸瓦中的工作位置。 -
According to heat load source of die cavity, temperature distribution gradient equations and heat flux equations and the peak value equations of temperature load at die cavity surface have been obtained with research of temperature distribution and transfer laws of die surface by unsteady heat transfer theory
摘要根據鍛模型腔熱負荷來源，通過非穩態傳熱理論，分析研究了模具工作表面層的溫度分佈與傳遞規律，給出了型腔表面溫度分佈梯度和熱流密度公式，並給出了鍛模型腔表面的溫度負荷峰值的計算公式。 -
In chapter 4, the aeroelastic model of the whole test rig is first established by using jones ’ s approximation of theodorsen ’ s unsteady aerodynamics load. then, the numerical simulations and wind tunnel experiments for the sub - optimal flutter suppression of the airfoil model are presented
數值模擬和風洞實驗研究表明，以超聲電機為控制面作動器可以有效地抑制翼段模型的顫振，顫振臨界速度提高了13 . 4 % ，數值模擬和風洞實驗結果基本吻合。
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