双井中的随机共振现象

用Ｆｏｋｋｅｒ－Ｐｌａｎｃｋ算子法建立了处理分段连续调制下的双井随机共振问题的理论方法，并对方波和锯齿调制情况进行了解算。文中用线性响应理论对结果加以处理，并发现了随机共振现象。分析方法包括了绝热近似下的结果，并适用于非绝热的情况。

深海半潜式钻井平台的总布置

介绍新一代深海半潜式钻井平台的总布置理念、思路,分析可变载荷、双井系统、隔水管存放形式、机舱数目与布置等关键技术点,并对平台总布置予以综合说明。

STUDY ON THE CHARACTERISTICS OF LOW FREQUENCY SYNCHROMOTOR USED IN MINE HOIST SYSTEMS FED BY THE CYCLOINVERTER

The Low Frequency Synchromotor Drive Mine Hoist System fed by the cycloinverter has good features from the technological and economical point of view. According to the erating char acteristic of the mine hoist system, an advanced analysis is given to the construction, the operating characteristics and the harmonics of the magnetomotive force of the synchromotor fed by the cy cloinverter, and the beneficial suggestions are also given in this paper.

空心墩井架式自升翻模设计与施工

结合厦蓉高速排调河1号特大桥双壁矩形空心墩双井架式自升翻模施工实例,阐述了双井架式自升翻模系统设计,施工等事宜,指出该翻模系统具有结构合理性和经济适用性,为同类型高墩施工积累了宝贵经验。