A lattice-based approach for navigating design configuration spaces
A lattice-based approach for navigating design configuration spaces
复制标题
DOI：
10.1016/j.aei.2019.100928
复制
发表时间：
2019-10
期刊：
影响因子：
--
通讯作者：
A. McKay;H. Chau;C. Earl;A. Behera;A. Pennington;David C. Hogg
中科院分区：
文献类型：
--
作者：
A. McKay;H. Chau;C. Earl;A. Behera;A. Pennington;David C. Hogg
设计配置，如物料清单（bom），是任何产品开发过程中不可或缺的一部分，也是存储在专有计算机辅助设计和产品生命周期管理系统中的设计描述的组成部分。工程师使用bom和其他设计配置作为透镜，将设计描述重新用于特定目的。由于这个原因，在任何给定的产品开发过程中通常会出现多个bom。例如，工程BoM可用于定义最能支持设计活动的配置，而制造BoM可用于定义最能支持制造过程的部件配置。目前定义bom的实践包括使用缩进的零件列表和图，这很容易出错，因为在本质上，通过零件标识符（如名称和零件号）的集合定义的bom之间很容易产生差异。这样的错误产生了返工的需要，增加了成本，增加了上市时间，从而对产品开发过程的性能产生了重大的不利影响。本文介绍了一种设计描述功能，该功能可确保给定设计的bom之间的一致性。布尔超立方体晶格用于定义设计配置空间，该空间包含给定设计描述的所有可能配置。空间内的有效操作由超立方格的数学控制。设计描述能力通过早期的工程设计配置软件工具得到验证，该工具通过确保给定设计的bom之间的一致性提供了显著的好处。该软件使用并生成设计描述，这些描述通过标准（ISO 10303-214）接口格式从商业上可用的设计系统导出和导入。通过这种方式，对行业实践的早期影响的潜力是很高的。
Design configurations, such as Bills of Materials (BoMs), are indispensable parts of any product development process and integral to the design descriptions stored in proprietary Computer Aided Design and Product Lifecycle Management systems. Engineers use BoMs and other design configurations as lenses to repurpose design descriptions for specific purposes. For this reason, multiple BoMs typically occur in any given product development process. For example, an engineering BoM may be used to define a configuration that best supports a design activity whereas a manufacturing BoM may be used to define the configuration of parts that best supports a manufacturing process. Current practice for the definition of BoMs involves the use of indented parts lists and dendograms that are prone to error because it is easy to create discrepancies across BoMs that, in essence, are defined through collections of part identifiers such as names and part numbers. Such errors have a significant detrimental effect on the performance of product development processes by creating the need for rework, adding costs and increasing time to market.This paper introduces a design description capability that ensures consistency across BoMs for a given design. A boolean hypercube lattice is used to define a design configuration space that includes all possible configurations for a given design description. Valid operations within the space are governed by the mathematics of hypercube lattices. The design description capability is demonstrated through an early engineering design configuration software tool that offers significant benefits by ensuring consistency across the BoMs for a given design. The software uses and generates design descriptions that are exported from and imported to commercially available design systems through a standard (ISO 10303-214) interface format. In this way, potential for early impact on industry practice is high.