Francesco Schiavone

Design for disassembly: a methodology for identifying the optimal disassembly sequence

Optimizing the disassembly sequence of mechanical systems is very useful in order to improve maintenance and recycling activities (i.e. to reduce costs, times and number of operations). A new virtual disassembly environment, based on two different algorithms, is presented. The first analyses the physical constraints that oppose the movement of the mechanical element: starting from its three-dimensional computer-aided design representation, it creates the ‘AND/OR’ graph of a mechanical assembly that represents the space of disassembly solutions. The second algorithm, using a representation based upon binary trees, allows the automatic exploration of the set of all possible sequences. Among these, the optimal one can be identified, choosing a specific target function. The developed methodology provides the theoretical basis for the creation of a computer-aided design tool able to evaluate the ability to disassemble a mechanical complex during the early design phase.

Strategy-based approach to eco-design: an innovative methodology for systematic integration of ecologic/economic considerations into product development process

This paper shows how Rieter Automotive is approaching the integration of environmental considerations in product development process by providing an overview of all the involved elements playing a role in eco-design implementation, organised in a logical framework. A methodological approach is summarised, that integrates cultural aspects, product innovation issues and product strategic vision. The starting point for tool development is presented. Systematic integration of eco-design is proving to be feasible, but requires ad-hoc decision making and customised solutions, based on the company reality. The results of the project are showing promising opportunities for the improvement of the methods for optimised and eco-efficient design.

Comparative Life Cycle Assessment (LCA) of passenger seats and their impact on different vehicle models

The main purpose of Life Cycle Assessment (LCA) to date has been to evaluate life cycle impacts of different design solutions and materials for a car, its sub-systems and components. Considerable number of publications are available on LCA of automotive components. This research aims to extend the LCA approach by evaluating and comparing the effects of mass reduction of passenger seats for different vehicle models in order to provide strategic support for decision making in the development process and to validate the environmental benefits of design alternatives under investigation. For this purpose, the paper presents a comprehensive LCA of passenger seats with detailed consideration of alternative scenarios for the use phase for different vehicle models.

Strategy-based approach to eco-design: application to an automotive component

The systematic integration of environmental consideration in product development is the object of research activities both in academic and industrial circles. This paper describes how Rieter Automotive is approaching this challenge: a methodological approach to integrate product innovation and strategic vision is presented, as starting point for the development of an assessment tool. An application to a panel for the trunk is also summarised. The results are showing promising opportunities for eco-efficient design of automotive components and validated decision making. This will support engineers during innovation tasks and product development, in order to find eco-efficient solutions by means of user-friendly methods.