In the meantime, the difference between a direct integration method and a modality superposition method in the nonlinear solution of large sized shaftings was also investigated. It can be shown that the use of a nonlinear method for solving the kinetics response of a higher dimensional rotor bearing system is both essential and feasible. With regard to the nonlinear kinetics problems of a rotor system the direct integration method is more effective than the modality superposition method. steam turbine, rotor, dynamics, nonlinearity

國(guó)內(nèi)外先后采用非線性油膜力的數(shù)值積分方法對(duì)轉(zhuǎn)子軸承系統(tǒng)的非線性動(dòng)力學(xué)行為進(jìn)行了一定研究91看电影亚洲精品，但主要集中在簡(jiǎn)單轉(zhuǎn)子—軸承系統(tǒng)的研究上，在分析上主要采用的是簡(jiǎn)單離散方法在线免费观看日本视频，轉(zhuǎn)子多被簡(jiǎn)化為剛性轉(zhuǎn)子和Jeffcott轉(zhuǎn)子模型在线一区免费不卡，只能對(duì)簡(jiǎn)單轉(zhuǎn)子—軸承系統(tǒng)的非線性動(dòng)力學(xué)行為進(jìn)行定性的分析，而對(duì)于象汽輪機(jī)組軸系這樣的高

Nickel steels have been used for components in automobiles and other vehicles, including aircraft, and for a multitude of components such as gears, shaftings which require great strength, and other heavy duty products.

鎳鋼可以被用來(lái)制造汽車(chē)、其它運(yùn)載工具包括飛機(jī)欧美性爱资源网，以及大量高強(qiáng)度齒輪超爽超舒服黄色一级A片视频、軸系部件和其它重型產(chǎn)品。