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在过去的10年中,研究人员发现车辆安全性是影响消费者购车的一个重要因素。但是世界各地使用不同的车辆碰撞测试评价规程,提供不同的安全信息给消费者。从认证的角度来看,这些安全标准的差异使得制造商(OEMs)难以生产出能在全球销售的汽车。在现代工业中,计算机辅助设计(CAD)和计算机辅助工程(CAE)已得到广泛应用以降低开发成本和缩短设计周期。在原型车进行试验之前,许多类似的设计可以在计算机上进行评估。随着计算机性能的不断提升,为满足众多的甚至相互冲突的安全标准的规定,数学模型已经成为不可或缺的工具。本文将讨论分层次的CAE模型验证方法,通过计算机试验设计(DOCE)获取约束系统最佳参数的方法,以及下一阶段的被动安全法规。
In the past 10 years, researchers have found that vehicle safety is an important factor affecting consumers’ car purchases. However, different crash evaluation procedures are used throughout the world to provide different safety information to consumers. From a certification point of view, these differences in safety standards make it difficult for manufacturers to produce vehicles that are globally available. In modern industry, computer aided design (CAD) and computer aided engineering (CAE) have been widely used to reduce development costs and shorten the design cycle. Many similar designs can be evaluated on a computer before the prototype is tested. As computer performance continues to improve, mathematic models have become an indispensable tool to meet the requirements of numerous and even conflicting safety standards. This article will discuss hierarchical CAE model verification methods, methods for obtaining the best parameters of a constrained system through computer experimental design (DOCE), and passive safety regulations for the next phase.