Development Of SaaS Platform For Shafting Tructure Digital Design

In recent years,with the rapid development of the new industrial revolution,the development of industrial software,as the carrier of industrial digitization and networking,has been widely concerned by all walks of life.In order to solve the problems of low design efficiency,high design threshold and current industrial software function fragmentation of traditional design methods,this paper studies the digital design methods in each stage of technical design,and develops a digital design platform with shafting as the main object by combining with SaaS mode software development technology.The main work of this paper is as follows:(1)The design requirements of mechanical products in function,performance,structure and economy are analyzed,and the concept information is abstractly expressed.The concept of basic transformation unit is introduced,which is used as the carrier and basic component unit of motion transformation.By establishing the state transformation equation,the realization process of motion transformation function is described abstractly,the function information of various basic transformation units is summarized,and the knowledge base is established.On this basis,the digital solution method of motion scheme is established.In order to solve the problem that there is too much non parametric information in motion scheme design and it is difficult to transfer it completely to the downstream structure design stage,the symbolic expression method of motion scheme and the object-oriented information encapsulation method are established to provide a comprehensive and clear information basis for the structure design stage.(2)In order to establish a unified example and realize the automatic interaction of parameters among the structural design processes,the concept of knowledge model is proposed,and the modular knowledge model of shafting is established by dividing the shafting design object and design process.Based on the mathematical model of shafting structure composition,the solution method of shafting layout scheme is established,and the structural constraint information of shafting assembly scheme is expressed mathematically.On this basis,the structural parameters of each component and the whole shafting are designed respectively.In order to achieve the purpose of compact shafting structure,the shafting structure optimization design method with the total volume of shafting as the optimization objective is established.The performance of each part of the shafting is analyzed from the aspects of strength,stiffness and service life.Based on the diversity of structural design,in order to facilitate designers to select the optimal design scheme according to the design requirements,a shafting scheme evaluation method based on Fuzzy Analytic Hierarchy Process(FAHP)is established.Finally,the feasibility of the shafting structure and performance design method is verified by designing the input shaft of the bevel cylindrical gear reducer.(3)This paper introduces the basic concept of SaaS mode,and reflects the advantages of SaaS mode by comparing with traditional software.Through the analysis of user needs,the main functional requirements of the platform are described,and the main operation permissions of different roles of users are described,thus reflecting the ecological mode of the platform.Based on the platform requirements,the logical architecture and deployment architecture of the platform are carried out respectively.Different types of database structures are selected according to the confidentiality requirements of different types of users.The core table structure of the database is designed by analyzing the entity types and association relationships of the platform.The realization of the two core function modules of the platform,software encapsulation module and process reengineering module,is explained.In order to show the operation process of the software encapsulation and process reengineering function more intuitively,the prototype schemes of the development center and the design center are designed respectively.Finally,through the application case of bevel gear reducer structure design,the operation process of the platform project process is explained,and the feasibility of the whole process of shafting structure design,including demand analysis,motion scheme design,structure design and performance design,is verified.