摘要
[目的]为了控制船舶轴系纵向振动,提出采用碟簧式纵向减振器的设计思路,并开展动态特性研究。[方法]首先,对减振器的静刚度特性进行理论分析和实验测试;然后,研究静载荷、激振频率、碟簧组合形式等因素对减振器动刚度特性的影响;最后,将优选后的减振器方案应用于船舶轴系,分析减振效果。[结果]结果表明:所选4片对合碟簧组合的减振器动静刚度比低,动刚度对静载荷、系统激振频率等因素的变化不敏感,为工程应用的较优方案;减振器的应用对轴系纵向振动控制效果明显。[结论]研究成果对船舶轴系碟簧式纵向减振器的工程应用具有参考价值。
[Objectives]In order to suppress the longitudinal vibration transfer of ship shafting,this paper put forward a design approach of applying disc-spring longitudinal shock absorber to the ship shafting,and carried out a study of dynamic characteristics before and after applying this type of longitudinal shock absorber.[Methods]First,the static stiffness of shock absorber was studied by theoretical analysis and experimental test.Secondly,the influence of static load,excitation frequency,disc spring combination and other factors on the dynamic stiffness of shock absorber was investigated by experimental test.Finally,the optimized scheme of disc-spring shock absorber was applied to ship shafting to study the effect of vibration reduction.[Results]The results show that the selected four-piece dual disc-spring shock absorber has a low ratio of dynamic stiffness to static stiffness,and its dynamic stiffness is not sensitive to the variation of static load,system excitation frequency and other factors.The application of shock absorber has obvious effect on longitudinal vibration control of shafting.[Conclusions]The research results have reference value for the engineering application of ship shafting disc-spring longitudinal shock absorber.
作者
夏极
李全超
XIA Ji;LI Quanchao(Wuhan Second Military Representative Office,Naval Armament Department of PLAN,Wuhan 430064,China;China Ship Development and Design Center,Wuhan 430064,China)
出处
《中国舰船研究》
CSCD
北大核心
2021年第3期194-199,共6页
Chinese Journal of Ship Research
关键词
船舶振动噪声
碟形弹簧
纵向减振器
动态特性
ship vibrational noise
disc-spring
longitudinal shock absorber
dynamic characteristics
