Development of an approach for the combined control of disassembly and postprocessing processes in plant dismantling

开发工厂拆除中拆卸和后处理过程的联合控制方法

• 批准号: 244566591
• 负责人: Dr.-Ing. Georg Ullmann
• 金额: --
• 依托单位: Institut für integrierte Produktion Hannover (IPH) gGmbH
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/244566591?language=en
• 关键词: Development; approach; combined; control; disassembly

Dismantling closed industrial plants of huge sizes and complexity (e. g. nuclear power plants or oil refineries) is a big challenge concerning the planning and scheduling of the logistical processes. If a plant is dismantled and the components are postprocessed on-site, e. g. due to safety regulations demanding special controlled areas in nuclear facilities, often logistical deficits are resulting. If disassembly and postprocessing are not coupled close enough often massive fluctuations of the working systems workload are resulting. A long duration of the whole dismantling process, high inventories of work in progress and alternating short- and over-capacities are the result. This can decrease the economic efficiency of a dismantling project. An approach for a combined control of disassembly and postprocessing considering the specialties of plant dismantling does not exist yet. The objective of this research proposal is to develop an approach for a combined control of disassembly and postprocessing processes in the field of plant dismantling. The approach shall start disassembly activities for specific parts of the plant considering sequence dependent restrictions in such a manner that a constant workload of the postprocessing working stations is achieved. It is also aspired to minimize the buffer stock of work in progress between disassembly and postprocessing. Also knowledge shall be generated concerning the limitations of the achieved approach. The question shall be answered, if a shifting of workloads by controlling the disassembly sequence can improve logistical goals compared to an isolated control of disassembly and postprocessing.

拆除规模巨大和复杂的关闭的工业工厂（e）。G.核电厂或炼油厂）是一个巨大的挑战，涉及规划和调度的后勤过程。如果工厂被拆除，部件在现场进行后处理，e. G.由于安全条例要求在核设施内设立特别控制区，因此经常造成后勤方面的不足。如果拆卸和后处理耦合不够紧密，经常会导致工作系统工作负载的巨大波动。结果是整个拆除过程持续时间长，在建工程库存高，产能不足和过剩交替出现。这会降低拆除项目的经济效益。目前还没有一种针对设备拆卸特点的拆卸与后处理联合控制方法。本研究建议的目的是开发一种方法，在工厂拆卸领域的拆卸和后处理过程的联合控制。该方法应考虑顺序相关限制，以实现后处理工作站的恒定工作量的方式，开始工厂特定部件的拆卸活动。它还希望最大限度地减少拆卸和后处理之间的缓冲库存。此外，还应了解所采用方法的局限性。与单独控制拆卸和后处理相比，通过控制拆卸顺序转移工作量是否可以改善物流目标，这个问题应该得到回答。