【作者】 林康；

【导师】 刘丽冰；

【作者基本信息】 河北工业大学 ， 测试计量技术及仪器， 2011， 硕士

【摘要】 设计评估与优化是产品研发、改进、创新的关键。传统的设计评估与优化技术采用串级工作流程,通过经验公式或多领域专家完成,需要设计计算、分析评估、再设计计算、再分析评估等多次循环反复工作,特别是大量繁复的人工评判及协调工作的局限性,不但大大推迟了新产品上市时间,造成了极大的资源浪费,还会留下严重的生产安全隐患。现代测控技术通过分布式、协同化、可视化、数字化方法实现复杂过程的数据监测、质量控制及数值模拟,本文探讨基于现代测控技术思想的产品虚拟样机仿真设计评估与优化方法,试图采用仿真驱动的MDO技术将产品设计过程延展,借助多域仿真模型和虚拟评估方法来解决产品虚拟样机设计优化问题。首先,分析了基于仿真驱动的复杂产品设计方法,从概念设计、初步设计、详细设计三个阶段阐述如何进行相应的有效的评估,然后从全局上进行归纳综合,形成一套完整的、递进的评估优化策略。其次,给出了基于仿真驱动的产品虚拟样机协同设计评估与优化的基本方法,通过产品虚拟样机仿真建模、协同运行及优化评估,形成了一种分布式协同评估优化模式,通过仿真模型初步解决了产品设计优化系统的多域集成性与过程性控制评估与优化问题。最后,以民航客机的设计评估与优化为实例,针对机翼的结构、气动多领域协同设计为对象,对上述方法进行验证,并得出最优方案,与传统的方法相比,基于仿真驱动的设计评估与优化方法更加科学、更加完备,对产品的设计更具有指导意义。更多还原

【Abstract】 The design evaluation and optimization is the cruces in the product research, improvement, and innovation. The traditional design evaluation and optimization techniques were used a serial work flow, completed through the empirical formulas , the multi-domain experts, and a cyclical, repeated works with a design calculation, analysis appraisal, re-design calculation, re-analysis appraisal, specially the massive complicated artificial judgments and coordinated work limitation, lead to a postponing of the new product going on the market time greatly, which created the enormous resources waste, even left behind serious production security risk.Through the distributional, collabrative, visible, digitized method, the modern measuring and control technique realize the data monitor, quality control and value simulation of the complex process, under the Virtual Prototyping simulation design evaluation and optimization method based on the modern measuring and control ideology, this thesis attempts to use the simulation-driven MDO technology to extend the product design process, as well as using multi-domain simulation model, and the virtual evaluation solve the Virtual Prototyping design optimization.First, the simulation-driven complex product design method has been analyzed, from the conceptual design, the preliminary design, to detail designs the thesis has elaborated how to carries on the corresponding effective evaluation, then carried on the induction and synthesis from the global situation, formed a set of completely, progressive evaluation and optimization strategy.Secondly, the essential method of the simulation-driven product Virtual Prototyping collaborative design evaluation and optimization has been given, through the product Virtual Prototyping simulation modelling, collaborative running as well as optimization and evaluation, one kind of distributional collaborative evaluation and optimization pattern has been formed, using simulated model, the multi-domain integration, process control as well as evaluation and optimization of the product design optimization system has been initially solved. Finally, take the design evaluation and optimization of the airline as an example, and take the wing structure, aerodynamics multi-domain design as the object, this thesis carried on the confirmation to the above method, and obtained the synergy, compared with the traditional method, the simulation-driven design evaluation and optimization is more scientific, and more complete, which has the guiding sense to the product design.更多还原