泡點壓力 的英文怎麼說
中文拼音 [pāodiǎnyālì]
泡點壓力
英文
bu ling pre ure-
The advantage and disadvantage of measurement of propeller - induced pressure by using different equipment is discussed. the method to obtain self - propulsion point for full scale in depressurized towing tank is studied. the measurements of pressure of two propeller models are carried out, the results of the measurement agree with those obtained by cavitation tunnel very well, which proves this measurement is successful, and the theoretical prediction is verified too
比較了不同測試設備用於螺旋槳脈動壓力測試的優缺點,探討了在減壓拖曳水池中實現實船自航點的方法,並進行了兩只螺旋槳模型的脈動壓力測試,經與空泡水洞中脈動壓力的測試結果進行比較,說明該項測試是成功的,同時也對脈動壓力的理論預報結果做了驗證。The innovation is that a ring bar sprayed bubbling gas distributing device is installed at the bottom of the tower, which has novel effects of leveling off gas and decompressing, cooling and dust removal, highly effective absorption, hydraulic stiring and so on at the same time
其創新點是在塔的下部嵌入了一個環柵噴射鼓泡式進氣裝置,其新穎之處體現于:煙氣穩流減壓,冷卻除塵,高效吸收,氣力攪拌等功能可在環柵通道內一氣呵成。According to the special shape and operate requirements of the torpedo, the structure and moulding process of the torpedo shell are established, in which the body and overlay block with grooves are moulded by fiber winding, and close moulding respectively with the adhesive by limited stop compression. in the light of the selection of raw material system, composite system with outstanding performance are defined, based on which the mechanical properties are tested., with the overall consideration of structural characters and design demands, the main factors which may have effects on the strength and stability ( including stiffness section dimension, stiffeners space, skin thickness and skin lay angle ) is optimized one by one for the structure design parameters on the base of the fem model of skin, stiffness and layover block by fem. as a result, the prototype with 1 : 1 proportion and its structure and lay optimization design are completed. the moulding technology for polyurethane foam moulding the stiffened shell is obtai ned in terms of the design, manufacture moulding, experimental mould and tooling
依據在研產品特殊的外型結構和使用要求,確定了該型號水雷復合材料殼體的具體結構形式和復合成型工藝路線,即由纖維纏繞工藝成型主體異形件,閉模成型帶通槽外貼塊,用限位加壓工裝實現粘接的工藝路線;通過對原材料體系的篩選,確定了綜合性能較好的復合材料體系,以此為基礎進行了力學性能測試;運用有限元方法,建立了蒙皮、筋條和外貼塊的分析模型,綜合考慮結構特點和設計要求,對影響結構強度與穩定性的主要因素(包括筋截面尺寸、筋間距、蒙皮厚度、蒙皮鋪層角度)分別進行了結構設計參數的優選,最終完成了復合材料異形耐外壓殼體1 : 1樣件和縮比實驗件結構及鋪層優化設計;完成了聚氨酯泡沫胎成型內置加筋殼體的成型工藝技術研究;對縮比件進行外壓性能測試,並給出了應力、應變測試結果。Pressure of air bulb in film
濾膜氣泡點壓力The practice indicated that the eps roadbed have advantages of light weight and convenient construction, erection structure will reduce more ground press and land area. this method can reduce the settlement availably and it is an ideal lightweight filling of the widening roadbed
實踐表明, eps硬泡沫塑料具有質輕、施工方便等優點,採用直立式結構能進一步減小地基壓力,同時節約佔地,能有效的減小新老路基間的差異沉降。Presently most of the theoretical method to predict the propeller - induced hull pressure fluctuation is based on the calculation method in which the pressure is induced by pulsating source in infinite flow. the calculation method is adopted and the corresponded computer program is complied. the propeller - induced hull pressure fluctuation due to blade thickness, blade load, cavity thickness and the change of the cavity volume can be analyzed respectively in the computer program
目前,螺旋槳誘導的船體表面脈動壓力的理論預報方法,大多是以無限流場中點脈動源誘導的周圍流場的脈動壓力的計算方法為基礎的,本文採用該方法編制了計算程序,可以分別考慮槳葉厚度、槳葉負荷、槳葉上空泡厚度及其體積變化在船體表面指定位置上產生的脈動壓力。Hydraulic fluid power - filters - evaluation of filter performance - part 2 : filter elements - verification of fabrication integrity and determination of the first bubble point
液壓動力.過濾器.過濾器性能的評價.第2部分:過濾器元件.製造完整性的檢定和首次起泡點的測定In order to make clear the effects of fe3o4 on composite film structure, the thickness, porosity, average and maximum pore size, pore size distribution of different films are measured. surface morphology is studied by scan electronics microscope ( sem ). the characterizing results of film micro - morphology showed that pore structure of fe3o4 / pvdf composite film were better than those of pvdf host film
為進一步分析fe3o4的原位生成對復合膜結構的影響,測定了pvdf基膜和復合膜的膜厚;採用干濕膜重法測試了膜樣品的孔隙率;採用泡點壓力法流體滲透法相結合,對比測試了膜樣品的最大孔徑、孔徑分佈及平均孔徑;通過掃描電子顯微鏡( sem )照片分析,對比研究了pvdf基體膜和fe3o4 / pvdf復合膜的表面形貌。With the fund item sponsored by the national laboratory of hydrodynamics, the study on measurement method of propeller - induced pressure with using self - propulsion model has been carried out in depressurized towing tank
在脈動壓力的模型測試研究方面,本文在水動力學國家重點實驗室基金項目的資助下,對在減壓拖曳水池中利用自航模進行空泡螺旋槳誘導的脈動壓力的測試方法進行了研究。Relativel ~ ~ matlab language is more powerful than oilier computing language, especially in computation fluid mechanics, it helps to simply draw charts of vortex, stream function, velocity, pressure, and the amount of work can be extremely reduced, and the program coniplving can also be controlled easily
得到空化數的分佈以後,進而分析流場內空泡的運動軌跡,最後得到空泡半徑在流場內隨壓力的變化關系曲線,以及在流場內空泡半徑沿壓力最小點的分佈規律。In light of cheng ' s balance container for measuring boiler barrel water - level, a new type instrument is introduced from its principle, characteristics and system composition etc. this new instrument has self - correcting funcion of water - level based on drum pressure ; and is of a high precision instrument for monitoring water - level of boiler barrels
摘要針對成氏平衡容器,從工作原理、特點、系統組成等方面,介紹了一種新型的汽泡水位測控儀,它具有汽包水位壓力自動校正功能,是一種高精度的汽泡水位監控儀。分享友人