Design Method Of Ultrashort Wave Physiotherapy Device Body Integrating Perceptual And Functional Structure

As one of the most widely used physiotherapy instruments,the ultrashort wave physiotherapy instrument is mainly used in clinical rehabilitation,relieve pain,and improve the quality of life of patients.The ultrashort wave physiotherapy instrument has a wide range of treatments and a large demand for use.As a functional component of the product,its body plays the role of interacting and protecting internal components.The quality of the body will directly affect the user experience and the stability of the functional system.Therefore,higher requirements are put forward for the body modeling and design method of the ultrashort wave physiotherapy instrument in terms of meeting user needs and product functions.Based on the characteristics of extenics suitable for the study of structured and formalized problems,this paper hopes to provide an innovative and effective solution to the problem of product design contradictions.However,in the actual design process of the physiotherapy instrument,it faces challenges such as complex information mapping,interference between the modeling and functional structure of the body,and interference of high-frequency electromagnetic fields environmental.In view of the above problems,the characteristics of the body of the physiotherapy apparatus that meet the needs of users are systematically analyzed.Combined with the knowledge of mechanics,design and electromagnetics and other disciplines,the extension modeling of design information,multi-dimensional mapping of perceptual images and modeling elements,and irregular holes are proposed.Based on practical engineering problems such as the analysis of the shielding effectiveness of the array,the design method of the ultrashort wave physiotherapy apparatus that integrates the perceptual requirements and the functional structure is explored.The proposed method is quantitatively evaluated and the engineering design scheme is verified by extension goodness evaluation.First,at the level of information model of design.In order to solve the multi-dimensional problem of traditional rehabilitation physiotherapy product modeling design,a research method combining Kansei Engineering with Extensibility was proposed to construct a modeling design primitive model for users’ perceptual needs.On this basis,a BP neural network mapping to solve the nonlinear mapping problem is built by combining the relevant network theory,and then the model prediction simulation and the extension algorithm are combined to form a multidimensional integrated design method for the modeling of the physiotherapy instrument driven by user preference,so as to realize the output of the overall modeling plan of the physiotherapy instrument.Secondly,at the level of shielding effectiveness analysis.An analytical model for shielding effectiveness of conductor plates with irregular hole arrays with different sizes,numbers and distributions is derived.Based on Bethe’s pinhole coupling theory,a physical equivalent model is established by combining numerical simulation and data fitting,and then the analytical problem of shielding effectiveness of more complex periodic irregular hole array conductor plates is studied.Thirdly,at the level of the structure and modeling fusion design.The fusion design of modeling and functional structure for different types of rehabilitation equipment is proposed.For structural space type products,a fitting model of the overall modeling design primitives oriented to the user’s perceptual needs is proposed,which can satisfy the overall modeling design of the product while taking into account the influence of the internal mechanical structure of the product on the modeling design;for the form space type products,the collaborative design of electromagnetic compatibility and modeling is proposed.Based on the main parameters affecting the shielding effectiveness of the hole array conductor plate,combined with the principles of design geometry and bionics,to carry out the aesthetic design of the air vents of the body.Finally,the paper uses extension goodness evaluation to quantitatively evaluate the proposed method and verify the engineering design scheme.The results show that the proposed method has the advantages of high image target accuracy,short design cycle,beautiful body and strong electromagnetic shielding performance in practical applications,and can meet the practical engineering tasks of ultrashort wave physiotherapy instrument design and development.