surge margin 中文意思是什麼
surge margin
解釋
喘震邊界-
Simulation results show that the surge line moved up - left relative to the original one and surge margin became larger when wet compression is used, which means wet compression can extend steady - operation regions of compressors and the si a - 02 gas turbine. at last, based on the moore - greitzer model surge and rotating stall of a compression system with wet compression is modeled with consideration of inlet evaporative cooling and compressor pressure rise when wet compression is used
哈爾濱工程大學博士學位論文最後，本文在壓縮系統moors grei上zer模型的基礎上，考慮進口蒸發冷卻的作用和壓氣機濕壓縮過程的作用，推導出了濕壓縮系統喘振和旋轉失速的統一模型，該模型可以模擬系統發生喘振和旋轉失速時的瞬態響應以及噴水濕壓縮對系統瞬態響應的影響。 -
To meet the needs for wider surge margin of the turbofan engine, a new model was developed to predict the characteristics of the fan / high pressure compressor and turbine in this thesis. several ways, including, variable inlet guide vanes of the fan, variable guide vanes of the high pressure compressor, the variable inlet area ratio of the mixer and the nozzle areas, were presented to enlarge the surge margin of the turbofan engine. meanwhile, a method of combined variable geometries for optimizing controls of inlet guide vanes of the fan, guide vanes and the first two stators of high pressure compressor, area ratio of mixer and noz zle areas was established
為了滿足下一代作戰飛機對推進系統的性能和穩定性要求，本文建立了壓縮系統特性和渦輪特性的新模型，並分別採用改變渦扇發動機風扇進口導流葉片、壓氣機導流葉片和前兩級靜葉片、混合室進口處內、外涵面積比和尾噴管面積，研究了其對發動機性能和穩定性的影響，進而得出了渦扇發動機變幾何擴穩的方法，為發動機變幾何擴穩研究打下理論基礎。 -
The performance of modern internal combustion engine for locomotives often depend on the improvement of the supercharge performance. as part of the main component of the compressor, the inlet turning tube will affect the performance, especially the surge margin, of the compressor directly
現代內燃機車柴油機的功率和性能的提高在很大程度上取決于增壓器性能的提高，壓氣機進氣彎管作為增壓器的組成部分之一，直接影響壓氣機的性能和喘振裕度。
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