A Conceptual Design Analysis Method for Multidisciplinary Complex Products
A complex product and conceptual design technology, applied in the field of digital design and manufacturing, can solve problems such as difficulty in supporting model establishment, lack of analysis theory and analysis methods, and inability to express SysML, so as to reduce loss and improve design efficiency.
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specific Embodiment approach 1
[0031] Specific implementation mode one: combine figure 1 To illustrate, this embodiment is a conceptual design analysis method for multidisciplinary complex products, including the following steps
[0032] The steps of requirement analysis based on the quantitative matrix: driven by user requirements, map user requirements to system requirements, then quantify the relationship between system requirements, establish a relationship matrix, and conduct analysis;
[0033] The steps of functional decomposition based on the functional knowledge base: the functional decomposition method based on the functional knowledge base, according to the multidisciplinary and multi-field characteristics of complex products, firstly divide the system functions into modules, and then perform matching decomposition according to the functional knowledge base;
[0034] Steps for function structure mapping based on interface matching: map function to structure through analysis and retrieval to obtain...
specific Embodiment approach 2
[0037] Embodiment 2: This embodiment is a further limitation of Embodiment 1, wherein the demand analysis process based on the quantification matrix includes the following steps:
[0038] According to the product attributes, the technicians shall establish a standardized requirement description library for this type of product;
[0039] Establish a mapping matrix from user requirements to system requirements, apply the idea of quality function deployment, and map user requirements to system requirements; at the same time, expand the description of the relationship between requirements, analyze the relationship between system requirements, and track, inherit, improve, and satisfy these requirements. Four relationships are quantified to determine system requirements;
[0040] Analyze the attributes of the obtained system requirements, divide them into functional requirements and non-functional requirements, and carry out system function and product constraints; the functional ...
specific Embodiment approach 3
[0041] Embodiment 3: This embodiment is a further limitation to Embodiment 2, wherein the function decomposition process based on the functional knowledge base includes the following steps:
[0042] The general function of the system is decomposed into the general function of each subsystem according to the characteristics of the subject field, and the total function of the subsystem is defined through the change of the input and output flow of each subsystem;
[0043] Designers in different domains decompose the functions of their respective subsystem blocks according to the following principles: first, decompose according to the change of the value type of the flow, and define the change of the value type as the result of the first layer of functional decomposition; Function, according to the value change, the value space change, and the derivative change, the function is decomposed again to form the next level of function;
[0044]Establish a functional effect knowledge bas...
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