Man b & w 10l90mc diesel engine is a new type of man diesel company and it has been used in large container vessel . in order to investigate into the characteristic of shaft torsional vibration when any single cylinder flames out and how that affects the main power propulsion system of a ship , the author puts forward a new way of calculation concerning the shaft torsional vibration when the mean indicated pressure of other cylinders remain unchanged 在此基础上，开发了新的船舶轴系扭转计算软件，并以manb & w公司近几年新推出的一种大功率多缸柴油机manb & w10l90mc型柴油机为例，分别进行了额定功率下和单缸熄火下的扭转计算，并提出单缸熄火时其他缸平均指示压力保持不变的轴系扭振计算方法。
Magnetoelectricity gear method is a general torsional oscillation measurement method . it has disadvantages on less measure point and improved - needed dynamic characteristic . in the paper a new method of measuring torsional oscillation of the turbine - generator shaft was proposed on the basis of high speed ccd ( charge coupled device ) photography 现行的扭振测量方法以磁电式齿轮测量法为主,这种方法存在测点少,动态特性有待提高的缺点,就此本文提出了一种基于高速ccd ( chargecoupleddevice )摄像技术的汽轮发电机组轴系扭振测量的新方法。
The torsional interaction from the electrical couplings among the generating sets is presented and the influence of the natural torsional frequency of the generating sets on the torsional oscillation characteristics is described . the torsional dynamics between identical parallel turbine - generators are deduced as well as that between non - identical parallel turbine - generators . then the basic principle of equivalent simplification of generating units for different operational condition is summarized ( 2 )介绍了多机电力系统机组间电气耦合对轴系扭振特性的影响，以及机组自然频率与机组扭振相互作用的关系，并对复杂系统中并列运行的相同发电机和不同发电机间的扭振相互作用进行了分析，归纳了不同运行条件下机组等值简化的基本原则。
