Abstract
A mechanical product is the result of collaboration between different domains. In this paper we focus on the collaborative work that brings together the system engineer and the designer in the realization process of a mechanical system. A design solution, conceived in the CAD environment, is considered valid if all the specification requirements, defined in the MBSE (Model Based System Engineering) domain, are met. Thus, the preliminary study of these requirements has a major influence on the choice and validation of the design solution. In this paper a methodology for handling the requirements has been detailed. These requirements are classified into two main categories. The first one deals with the product performance and the second addresses the process performance in order to generate the best assembly sequence. Depending on the response of the designed solution to these requirements, it becomes easy to decide not only whether the design solution can be validated or not but also to choose the most optimal assembly sequence that ensures the best operation quality. A validation example of a speed reducer is used to demonstrate the added value of the proposed approach.
Highlights
Introduction and State of the ArtThe search for the right compromise between cost, quality and production time has led researchers to better contribute to technological development
Model-Based Systems Engineering (MBSE) is a multi-disciplinary approach that facilitates the exchange between different domains to validate systems design [4]
The problem is how to ensure the exchange of data between the System Engineer (SE), who has a global view of the product, and the designer, who is a Computer Aided Design (CAD) specialist, in order to validate the design solution of the mechanical assembly and to define the most appropriate assembly sequence that allows for a better quality
Summary
The search for the right compromise between cost, quality and production time has led researchers to better contribute to technological development. The problem is how to ensure the exchange of data between the SE, who has a global view of the product, and the designer, who is a Computer Aided Design (CAD) specialist, in order to validate the design solution of the mechanical assembly and to define the most appropriate assembly sequence that allows for a better quality. The generation of assembly sequences is certainly an important step in the development phase of mechanical systems, but it is always necessary to choose the most optimal sequence to ensure proper operation and better profitability of the system To this end, Design For Assembly (DFA). Brahmi et al developed a SysML profile capable of reading assembly data from the CAD software tree and translating them into SysML data [1] They defined a methodology to ensure continuity of work between SE and designers to facilitate the validation of proposed design solutions [4]. A methodology that enriches the CAD database with functional information collected from the MBSE area were developed [26]
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