轉模彎管機 的英文怎麼說
中文拼音 [zhuǎnmówānguǎnjī]
轉模彎管機
英文
rotary pipe bending machine-
With the rapid development of economy in china, vehicle volume is increasing heavily. therefore, the consequent traffic problems of traffic congestion, traffic accidents and environment pollution become a headache of city managers. intersection as the hinge of city traffic system, vehicles, pedestrians and bicycles join together in the intersection
本文依託國家自然科學基金重點項目《城市路網動態交通管理與控制關鍵理論及其模擬技術研究》和國家自然科學基金項目《混合交通中的機非沖突機理與基本參數研究》 ，對平面交叉口轉彎車流交通組織優化方法進行了研究。The results of calculation and measures show that the low frequency of steam pipelines vibration fastens on 4. 3 to 4. 5 hz and 9. 5hz, the low modes fastens on one - steps curl in vertical plane and its plane of each steam pipeline and one - rotation along with the line connecting the port circling main steam gate and the horizontal port of unit. the modes of # 3 and # 4 main steam conduits occupy the majority of low steps modes ( the five of the first eight phases ), except for the first phase rotation vibration, the maximal distortion of other low steps vibration modes are all caused by the vibration of erect pipelines of cylinder
計算和實際測量結果表明：導汽管低頻振動以4 . 3 - 4 . 5hz 、 9 . 5hz頻率為主，管系的低階模態以各導汽管在垂直導管平面和平面內的一階彎曲、以及繞主汽門處端點與水平段汽機端連線的一階扭轉為主， # 3 、 # 4導汽管的振動模態占低階模態的多數（前八階模態中的五階） ，除一階扭轉振型，導汽管的其它低階振動模態中都是進汽缸立管的下端振動變形最大。
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