Liu Shihao, Lin Mao, Bai Youjun
School of Mechanical and Electrical Engineering, Hainan University, Haikou, China.
School of Electromechanical and Automotive Engineering, Hainan College of Economics and Business, Haikou, China.
Sci Prog. 2024 Oct-Dec;107(4):368504241285077. doi: 10.1177/00368504241285077.
Among the components of high-tech ships, the structural complexity of the propeller profile requires a high degree of flexibility in the CNC polishing machine. In addressing this requirement, the study formulates the flexible optimization problem pertaining to research on the propeller CNC polishing machine. A comprehensive analysis is undertaken to scrutinize the geometric features of the propeller and the phenomenon of polished contact. The propeller profile-polishing head dynamic contact mechanism is revealed, and the contact force characteristics of propeller polishing are obtained. It is suggested that the propeller configuration-process-polishing machine structure coupling mechanism be explored under the influence of polishing contact force. Subsequently, a dynamic model of the propeller CNC polishing process is formulated. Based on the above model, a simulation of the motion personification and structural flexibility of the propeller CNC polishing machine is proposed to obtain dynamic personification and flexibility rules. Integrating polishing contact force characteristics with dynamic personification and flexibility rules, the dynamic flexible collaborative optimization principle of the propeller CNC polishing machine is revealed. On this basis, multi-objective optimization modeling and solving are carried out, forming a new method for the flexible optimization design of propeller CNC polishing machines.
在高科技船舶的组件中,螺旋桨轮廓的结构复杂性要求数控抛光机具有高度的灵活性。为满足这一要求,该研究提出了与螺旋桨数控抛光机研究相关的柔性优化问题。进行了全面分析,以仔细研究螺旋桨的几何特征和抛光接触现象。揭示了螺旋桨轮廓-抛光头动态接触机理,获得了螺旋桨抛光的接触力特性。建议在抛光接触力的影响下探索螺旋桨构型-工艺-抛光机结构耦合机制。随后,建立了螺旋桨数控抛光过程的动力学模型。基于上述模型,对螺旋桨数控抛光机的运动拟人化和结构柔性进行了仿真,以获得动态拟人化和柔性规则。将抛光接触力特性与动态拟人化和柔性规则相结合,揭示了螺旋桨数控抛光机的动态柔性协同优化原理。在此基础上,进行了多目标优化建模与求解,形成了一种螺旋桨数控抛光机柔性优化设计的新方法。