This paper describes the work principle of jack-up test after alignment, studies the calculation method of gearbox load and reaction force method, analyzes the disadvantages of common alignment technique and veriifes jack-up test can effectively adjust the shafting load.%介绍了76 m拖轮轴系合理校中的方法,研究了齿轮箱受力形式及采用支反力法进行校中计算的方法,通过对传统校中方法的研究,分析了其受力分析的的局限性,提出了能有效调整轴系负荷的方法,并通过实例验证了其正确性。
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