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SFB 805: Control of Uncertainties in Load Carrying Systems in Mechanical Engineering

SFB 805：机械工程中承载系统的不确定性控制

基本信息

批准号：
57157498
负责人：
金额：
--
依托单位：
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
依托单位国家：
德国
项目类别：
Collaborative Research Centres
财政年份：
2009
资助国家：
德国
起止时间：
2008-12-31 至 2019-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/57157498?language=en
关键词：
SFB 805 Control Uncertainties Load

项目摘要

Uncertainty occurs during the development of products and processes, as well as in all phases of the product life cycle. In 2014, for each new car, which was brought to the US market, approximately four already registered cars had to be recalled by the manufacturer. In Germany, three million new cars were registered and 1.5 million cars had to be rectified in the same year. Following the scientists of the Collaborative Research Centre (CRC) 805, uncertainty in the product and potential product defect arises if the corresponding process chains in the three product life cycle phases product development, production and usage cannot be determined to full extend.Thus, the CRC 805 deals with methods and technologies to describe, evaluate and control the propagation of uncertainty in a phased approach. The approach developed by the CRC 805 is based on three pillars. The first pillar consists of the terms, which have been developed and tested by the CRC 805. The methods form the second pillar. The focus is on non-parameterized linkage of uncertainty, robust optimization, robust design and scaling of uncertainty. The third pillar includes the technologies to describe and control uncertainty in production and usage. Here, the research focuses on a process- and usage-integrated identification of uncertainty with sensory components. The third funding period of the CRC 805 focuses on the control of ignorance as a common and important category of uncertainty. Engineering, mathematics and law cooperate interactively to analyze data-induced conflicts as an indication for model uncertainty, model uncertainty as cause of ignorance and resilience as a principle to control uncertainty. Thereby, resilience of systems and process chains is evaluated for deviations of system and process chain characteristics, which exceed the planned tolerance ranges. Since resilience requires the functions monitoring, reacting, learning and anticipating, the question on adaption of process chains and systems as well as the adaption of models and their re-use in the different phases of the product life cycle arises.

不确定性发生在产品和流程的开发过程中，以及产品生命周期的所有阶段。2014年，对于每一辆进入美国市场的新车，制造商必须召回大约四辆已经注册的汽车。在德国，300万辆新车登记在册，同年有150万辆车不得不整改。按照合作研究中心(CRC)805的科学家的说法，如果不能充分确定产品开发、生产和使用三个生命周期阶段中相应的过程链，产品中的不确定性和潜在的产品缺陷就会出现。因此，CRC 805以分阶段的方式处理描述、评估和控制不确定性传播的方法和技术。CRC805制定的方法基于三个支柱。第一个支柱由已由CRC 805开发和测试的术语组成。这些方法构成了第二个支柱。重点放在不确定性的非参数关联、稳健优化、稳健设计和不确定性的尺度上。第三支柱包括描述和控制生产和使用中的不确定性的技术。在这里，研究的重点是过程和使用相结合的不确定性与感官成分的识别。《儿童权利公约》第805号的第三个资助期侧重于把控制无知作为一种常见和重要的不确定性类别。工程学、数学和法律相互协作，分析数据引发的冲突，作为模型不确定性的指示，将模型不确定性作为无知的原因，并将弹性作为控制不确定性的原则。因此，对于系统和过程链特性的偏差超过计划的公差范围，评估系统和过程链的弹性。由于弹性需要监控、反应、学习和预期的功能，因此出现了过程链和系统的适应问题，以及模型在产品生命周期不同阶段的适应和重用问题。