2022 年 4 月
第 43 卷 第 4 期
推 进 技 术
JOURNA L O F PRO PU L S ION TECHNO LOGY
Apr. 2022
Vol.43 No.4
200644-1
船舶柔性推进轴系校中特性研究 *
尹红升,刘金林,施 亮,曾凡明,刘树勇
(海军工程大学 动力工程学院,湖北 武汉 430033)
摘 要:为研究柔性支撑方式对轴系校中状态的影响,综合考虑油膜刚度、轴承支点、筏架柔性及
气囊隔振器的弹性形变、动刚度等因素,建立柔性支撑结构刚度模型。基于灵敏度分析,计算各参数对
柔性支撑下轴承等效变位的影响,使用Kirging响应面法解决各气囊、筏架、轴承等效变位关于轴承负
荷参数的耦合,最终以艉轴承负荷和筏架调平量为目标变量完成校中综合优化。校中分析结果表明:柔
性推进轴系校中状态同时受轴承垂向变位、筏架形变、气囊刚度和形变等因素影响,其中形变因素影响
较大;轴承负荷关于各单独因素近似呈线性变化,但各因素之间的耦合关系使轴系负荷呈非线性;基于
响应面法同时调整筏架姿态和轴承负荷,改善轴系校中状态,使艉轴承负荷降低27%。
关键词:船舶轴系;柔性支撑;轴系校中;灵敏度分析;综合优化
中图分类号:V231.1 文献标识码:A 文章编号:1001-4055(2022)04-200644-09
DOI:10.13675/j.cnki. tjjs. 200644
Alignment Characteristics of Ship Flexible
Propulsion Shafting
YIN Hong-sheng,LIU Jin-lin,SHI Liang,ZENG Fan-ming,LIU Shu-yong
(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China)
Abstract:In order to study the effects of the flexible support mode on the alignment state of shafting,the
stiffness model of the bearing and flexible support structure were established by comprehensively considering the
oil film stiffness,bearing position,flexibility of raft frame,elastic deformation and dynamic stiffness of the air
spring. Based on the sensitivity analysis,the effects of each parameter on the equivalent displacement of the bear⁃
ing under the flexible support were calculated,and the Kirging response surface method was used to solve the
coupling of the equivalent displacement of each air spring,raft frame and bearing on the load parameters. Final⁃
ly,the adjustment optimization was completed by taking the stern bearing load and raft frame leveling as target
variables. The results of alignment analysis show that the alignment state of the flexible propulsion shafting is af⁃
fected by bearing vertical displacement,raft frame deformation,air springstiffness and deformation,among
which deformation factors have a greater influence. Bearing load is approximately linear with respect to each indi⁃
vidual factor,but the coupling relation between each factor makes shafting load non-linear. Based on the re⁃
sponse surface method,the attitude of raft frame and load of shaft section were adjusted simultaneously to im⁃
prove the alignment state of shaft system and reduce the load of stern bearing by 27%.
Key words:Ship shafting;Flexible support;Shafting alignment;Sensitivity analysis;Comprehensive
optimization
* 收稿日期:2020-08-27;修订日期:2020-09-28。
基金项目:国家自然科学基金(51909267);湖北省自然科学基金(2017CFB584);国防科技基金(20172B0815)。
作者简介:尹红升,博士,研究领域为船舶动力装置总体设计。
通讯作者:刘金林,博士,副教授,研究领域为船舶动力装置自动化及仿真技术。
引用格式:尹红升,刘金林,施 亮,等 . 船舶柔性推进轴系校中特性研究[J]. 推进技术,2022,43(4):200644. (YIN
Hong-sheng,LIU Jin-lin,SHI Liang,et al. Alignment Characteristics of Ship Flexible Propulsion Shafting[J]. Journal
of Propulsion Technology,2022,43(4):200644.)