ABSTRACT

In complex machines, the generation of a Disassembly Plan (DP) which allows a minimum change of disassembly tools and directions, and permits an easy dismounting of wear parts is the main requirement to ensure an efficient design. The disassembly cost, in the maintenance case, is high, and needs to anticipate the restore tasks in the early design stages. Considering the disassembly line conditions in the DP generation makes it possible to reduce the cost and rapidity of dismantling. Taking into account all the cited parameters previously in the DP generation, from the early design phase, is a main tread in the accomplishment of the circular economy. A new disassembly approach based on the Failure Mode, Effects and Criticality (FMECA) concept allows the integration of disassembly direction and tool, easy access of wear part and disassembly line conditions. It begins by the research of subassemblies composing the mechanism. Then, it generates a variety of DPs based on the CAD data. Then, the obtained DPs are classified according to a quality index which is calculated using the FMECA method. The implementation and comparative study with the literature are detailed using an industrial mechanism containing multiple wear parts.

摘要

在复杂的机器中，确保有效设计的主要要求是生成拆解计划（DP），该计划允许最小程度地改变拆装工具和方向，并易于拆卸易损件。在维护情况下，拆卸成本很高，并且需要在早期设计阶段就预见到恢复任务。考虑到DP代中的拆卸线条件，可以降低拆卸成本和速度。从早期设计阶段开始，就考虑到DP代中以前引用的所有参数，这是实现循环经济的主要步骤。一种基于故障模式，影响和严重性（FMECA）概念的新拆卸方法，可以集成拆卸方向和工具，易损件和拆卸线条件的访问。它始于对组成组件的子组件的研究。然后，它基于CAD数据生成各种DP。然后，根据使用FMECA方法计算的质量指标对获得的DP进行分类。使用包含多个易损件的工业机制详细介绍了实现方法和与文献的比较研究。