Integrated computer-automated tolerance management in early design stages

在前期研究项目“设计早期公差管理”中，提出了公差早期考虑的基本方法。个别方法的应用结果相互联系，并与常规设计过程联系在一起。由于这些方法的潜力和适用性在很大程度上取决于储存的设计和公差知识，因此本项目不仅侧重于公差管理方法的进一步发展，而且侧重于具体提供相关数据。为此，将扩大项目第一阶段制定的稳健设计和公差管理方法，并增加新的方法，以支持设计者进行符合公差的产品开发。科学上的挑战是过程的自动化，以帮助实现不依赖于用户的可靠结果。为此目的开发的数据管理允许对与公差过程相关的产品开发信息(从任务分类到详细设计)进行一致管理。通过定义规则(例如，本体论中的推论)，可以在早期产品开发阶段使用相关的隐含知识来自动化该过程。通过这种方式，该方法使公差概念甚至在最终产品设计之前就可以得到验证，而不需要付出大量的额外努力。由于与产品开发过程的密切联系，这种方法改进了产品设计，从而有助于避免在产品开发结束时进行昂贵的迭代。

In the previous research project "Tolerance management in early design stages", fundamental methods for early consideration of tolerances were developed. The results from the application of the individual approaches were linked with each other and with the conventional design process. Since the potential and applicability of these approaches strongly depend on the stored design and tolerance knowledge, the present project focuses not only on the further development of tolerance management methods but also on the specific provision of relevant data. For this purpose, robust design and tolerance management methods developed in the first phase of the project will be expanded and new ones are added in order to support the designer in the tolerance-compliant product development. The scientific challenge is the automation of the process in order to help to achieve reliable results independent of the user. The data management to be developed for this purpose allows consistent management of the product development information (from task classification to detail design) relevant to the tolerancing process. By defining rules (e.g. inferences in ontologies), relevant implicit knowledge can be used in early product development phases to automate the process. In this way, the methodology enables the tolerance concept to be verified even before the final product design without considerable additional effort. Due to the close link to the product development process this methodology improves the product design and thus contributes to avoiding costly iterations at the end of product development.