本文详细阐述了具有柔性船体的高性能船体上轴系对中过程中双头万向联轴节的定位法和工艺。
The paper described in detail the way and workmanship of centering of double head universal coupling during shafting alignment onboard high performance crafts that have flexible hulls.
对轴系校准原理进行了研究，提出了一种利用可见激光和PSD实现轴心调校、定位的新方法。
The paper studies shafting correction principle, puts forward a new means of axle alignment and allocation, which makes use of visual-laser and PSD technology.
对转台中环主轴施加轴向定位预紧力，通过脉冲激励法试验得到角接触球轴承的轴向刚度，试验结果与理论结果吻合较好，为转台研制中各轴系预紧量的控制提供了理论和实验依据。
The axial fixed position preload is applied to middle ring of the shaft, the axial rigidity of the angular contact ball bearing is obtained by the impulse excitation tests.
对转台中环主轴施加轴向定位预紧力，通过脉冲激励法试验得到角接触球轴承的轴向刚度，试验结果与理论结果吻合较好，为转台研制中各轴系预紧量的控制提供了理论和实验依据。
The axial fixed position preload is applied to middle ring of the shaft, the axial rigidity of the angular contact ball bearing is obtained by the impulse excitation tests.
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