French defines conceptual design as the phase of the design process when the statement of the problem and generation of a broad solution to it in the form of schemes is performed. An opinion given by Hudspeth is that conceptual design is more about what a product might be or do and how it might meet the expectations of the manufacturer and the customer. Nowadays, there are many definitions of conceptual design and corresponding methods and models that are used at the conceptual design phase analyzed in. According to, in the object life cycle, the conceptual design is made just before the phase of creating the detailed design, when the object’s concrete mathematical model is created and numeric calculations are realized. In the final section, an exemplary case study of the conceptual design phase of a mechatronic object is presented and discussed in the Conclusions section.Ģ.1 System modeling and hierarchical representationsĬonceptual model creation of a mechatronic object to be designed is the actual task for industrial production systems that usually operate with modern CAD/CAM systems. A method for concept evaluation is proposed in Section 3 of the chapter. Later, the state of the art concerning concept evaluation methodologies and indexes is presented. First, the conceptual design of mechatronic systems and different techniques and approaches for the system modeling and representation during this phase are discussed. The next section of this chapter is a two-part state of the art. The use of the mechatronic design index in a chosen application task will be presented. Aggregation of the new criteria will be performed using a nonlinear fuzzy integral. More specifically, the mechatronic criteria based on the mechatronic abilities as well as their scoring will be described using a systematic approach. The criteria used as well as the mathematical foundations of the method will be presented and analyzed. A method for concept generation and evaluation is presented. This chapter deals with methods and models used during the mechatronic design and more specifically with the design evaluation. The development of mechatronic products and systems requires concurrent, multidisciplinary, and integrated design approaches. On top of that, mechatronics enhanced the application domains from manufacturing to biomechatronics and micromechatronics. The enhanced intelligence of the mechatronic systems and the increased complexity are identified however, these changes drive to completely new characteristics and capabilities of mechatronic systems supporting the new generation of production systems, e.g., these devices evolved from the simple monitoring to self-optimizing their performance. The current mechatronic systems acquire very advanced capabilities based on the evolution of the mechatronics enabling technologies and the mechatronic design methodology. The purpose of this chapter is to mention some of the most widely used methods of system modeling, mainly through hierarchical representations of their subsystems, and also to present a method for the generation and evaluation of the design alternatives. During the conceptual design of a mechatronic system, the system to be designed is modeled, and several solutions (alternatives) to the design problem are generated and evaluated so that the most fitting one to the design specifications and requirements is chosen. This implies to very high uncertainty about the effects that these decisions will have later on. The conceptual design phase is of the highest importance during the design process, due to the fact that many crucial decisions concerning the progress of the design need to be taken with very little to none information and knowledge about the design object. The definition of the conceptual design phase has been expressed in many different phrasings, but all of them lead to the same conclusion.
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