| With developing of the shipping industry of our country,it is very important to test the ship's performance,because it's a signifance to ship's salty and reliability.The development of science makes the technology of measurement progress.Shipping shaft is a very important part of marine ship.Its function is transforming the power from diesel engine to propeller,making propeller roll.In this paper,the measurement of shipping shaft power and vibration system have been developed.Because testing shaft power will provide important evidence to verify the performance of shipping power plant.In addition,shipping shaft's vibration is also a universal problem.This problem can influent ship's safty and reliability.So it's a great significance to measure the vibration and power of the shipping shaft.This paper research the techology of power mechenism,analyzing signal, communication and programm technich.With the support of some hardware,have developed a measurement of shipping shaft power system.This system can test the the shipping shaft's power,axial vibration,whirling vibration and the orbit of shaft center-line.The whole system include the part of hardware and software.Chosing and designing the hardware properly is the basis of improving precision and reliabity.The hardware include:strain gauge,remote torque meter,advanced serial device servers,rotational speed meter,displacement meter,data acquisition card and notebook.The software had been programmed by VB.NET,otherwise,using correlative widget to reform its performance and make the process of programming easily.The software have the performance of signal acquisition,data analysis and disposal,data diplaying,report printing and data saving.In addition,this paper also measured the shipping shaft's power,axial vibration,whirling vibration,and orbit of shaft center-line in some practical boats.Compared the result with other measuring systems to validate shipping shaft have been designed stability and reliability.
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