Study On Project Design And Optimum Method Composite Wave Maker

In the experimental research field of ocean engineering and port and offshore engineering,researchers usually use laboratory flume wave-making technology to simulate ocean waves.Wave simulation is an important experimental technology,and wave-maker is a necessary experimental device for flume experiments.According to the different motion forms of wave-making plate,it can be divided into push wave-making machine and swing wave-making machine.The mechanical properties and wave characteristic parameters of the push wave maker and the swing wave maker are different because of their different wave-making principles.Because of the complexity and diversity of the experimental requirements,the single motion wave maker can not meet the requirements when different waves are needed in the experiment.In order to meet different experimental requirements,a new type of combined wave maker is proposed in this paper,which combines the performance characteristics of the push wave maker and the swing wave maker.The simulation analysis and optimization method are also studied,which provides important guidance for researchers to carry out wave making experiments.The following research work has been done in this paper:In view of the characteristics of wave heights in July and August offshore waters of Qinhuangdao and the need of experiments,based on the theory of micro-amplitude wave,the main design and working performance parameters of the two modes of wave-making are theoretically analyzed and deduced,and the important formulas of velocity potential function,wave height to stroke ratio of the two modes are obtained.The unification of the two wave-making theories is recognized.Understand and compare.The mathematical model of the deduced results is established by using MATLAB 2016 M language.The differences of the main design parameters between the two modes are compared in detail by calling various functions and using different algorithms.The main design and performance parameters of the two modes are calculated.With SolidWorks as the modeling tool,the mechanical structure design of the combined wave generator is carried out.ANSYS Workbench 17.0 was used to carry out simulation analysis for three working conditions under two working modes of the combined wave generator.According to the simulation results,the feasibility of the preliminary scheme was verified.Taking the simulation analysis of the combined wave maker as an example,the optimal design method of its key components under assembly mode is explored.Through the topology optimization,the shape of the guide rail bracket was improved,and a simpler structure and lighter weight design scheme was obtained.The difficulty in dimension optimization design of wave-making board calling response surface module in assembly mode was overcome and solved,and the quality of wave-making board was reduced.On this basis,a general feasibility optimization method for complex assembly is summarized.