Interactive Eco-Design Method Using CAD Database Feedback
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Solution Overview
Problem
Current Life Cycle Assessment (LCA) methodologies primarily focus on ecological assessment rather than interactive optimization of product design and production processes, leading to uncertainty in evaluating the ecological footprint of products during the design phase due to lack of quantified environmental data.
Innovation Solution
A method that uses a database to store physical requirement variables and ecological information, allowing for the calculation of construction alternatives using CAD/CAM systems to minimize ecological footprint by setting target values and tolerance bands for both physical and ecological criteria, enabling virtual scenario analysis during product construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If LCA methodology is used for comprehensive ecological assessment, then ecological footprint evaluation is improved, but interactive optimization of product design is worsened due to lack of real-time feedback
Solution Approach 1:
The patent implements a feedback mechanism by integrating LCA data into the CAD/CAM system, allowing designers to receive real-time ecological impact information during the design process. The system calculates ecological footprint values for different design alternatives and provides feedback to guide optimization decisions, transforming the traditional post-assessment LCA approach into an interactive design support tool.
2Adaptability or versatility
If design decisions are made without quantified environmental data, then design flexibility is improved, but uncertainty in ecological footprint evaluation is worsened
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing ecological footprint data for various materials and manufacturing processes in a database before the actual design process. This allows designers to access quantified environmental data during design decision-making, reducing uncertainty while maintaining flexibility through the availability of pre-prepared ecological information for different design options.
3Ease of manufacture
If robust eco-design is based on empirical data, then ecological optimization is improved, but uncertainty in evaluation criteria is worsened
Solution Approach 1:
The patent transforms empirical ecological data into standardized quantitative parameters that can be directly integrated into the design process. By converting environmental impact information into measurable parameters with defined units and scales, the system provides both ecological optimization capability and precise evaluation criteria, eliminating the uncertainty associated with purely empirical approaches.
4Measurement precision
If LCA is used for overall ecological assessment, then comprehensive evaluation is improved, but application for interactive design optimization is worsened
Solution Approach 1:
The patent merges the LCA assessment system with the CAD/CAM design environment, combining comprehensive ecological evaluation capabilities with automated design optimization tools. This integration allows the system to perform both functions simultaneously - maintaining comprehensive LCA assessment while enabling automated interactive optimization through the unified platform.
Data Source
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AI summary
The invention relates to a method for designing a product (2) comprising the following steps: - Creating a list (4) of technical requirements of the product, including physical requirement parameters (6), and storing the list (4) in a database (8); - Storing ecological information (10) in the form of physical parameters in the database (8), which includes at least information about usable materials and applicable production processes for manufacturing the product (2); - Defining basic design units (12), wherein the basic design units (12) are linked to the ecological information (10) and the list (4) of physical requirement parameters (6) in the database (8).- Defining a first target value for the physical quantities in the list and defining a first tolerance band for the first target value for at least one basic design unit (12); - Defining a second target value for an ecological assessment quantity (14) for at least one basic design unit and defining a second tolerance band for the ecological assessment quantity (14); - Calculating design alternatives (16) for the respective basic design unit (12) using a CAD and/or CAM system (18) on a computer (22) such that both the physical requirement quantity (6) and the ecological assessment quantity (14) as objective functions come closest to their target value within the respective tolerance band; - Carrying out the design of individual basic design units (12) using the CAD and/or CAM system (18) using one of the calculated design alternatives.