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首页> 外文期刊>The Aeronautical Journal >Integration of friction stir welding into a multi-disciplinary aerospace design framework
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Integration of friction stir welding into a multi-disciplinary aerospace design framework

机译：将摩擦搅拌焊集成到多学科的航空设计框架中

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摘要

Multidisciplinary design and innovative highly automated manufacturing methods are increasingly important to today's aircraft industry: multidis-ciplinary design because it reduces lead-time and results in a better design, and automated manufacturing methods because they are more capable and reduce manufacturing cost. In this paper a cost estimation model is presented that integrates the manufacturing cost of friction stir welded connections within a multidisciplinary design decision tool. Due to the fact that friction stir welding is a new manufacturing method, the cost estimation model is based on the actual process physics, meaning what the process looks like in terms of processing speeds and characteristics. As an integral part of a multidisciplinary design framework, the developed cost estimation model contributes to a design support tool that assesses not only manufacturing but also structural and aerodynamic issues. It is shown that the cost model developed can be integrated into this more holistic design process support architecture. The predicted costs are accurate to the historical data and allow tradeoff of manufacturing and economic considerations within the context of the multidisciplinary design tool. The tradeoff capability is highlighted through a presented case study that compares the friction stir welding process as an alternative solution to more tradition riveting. Most importantly, this results in a quantitative tradeoff between two processes that shows the manufacturing cycle time of friction stir welding to be reduced by 60% and the recurring assembly cost by 20%.
机译：多学科设计和创新的高度自动化的制造方法对当今的航空业越来越重要：多学科设计可减少交货时间并改善设计，而自动化制造方法则因为它们更有能力并降低了制造成本。在本文中，提出了一种成本估算模型，该模型将摩擦搅拌焊接连接的制造成本集成到了多学科设计决策工具中。由于搅拌摩擦焊是一种新的制造方法，因此成本估算模型基于实际的过程物理原理，这意味着该过程在处理速度和特性方面是什么样的。作为多学科设计框架的组成部分，开发的成本估算模型有助于设计支持工具，该工具不仅可以评估制造，还可以评估结构和空气动力学问题。结果表明，开发的成本模型可以集成到这种更全面的设计过程支持体系结构中。预测成本与历史数据相符，并且可以在多学科设计工具的范围内权衡制造和经济因素。通过介绍的案例研究突出了权衡能力，该案例研究比较了搅拌摩擦焊接工艺作为更多传统铆接的替代解决方案。最重要的是，这导致了两个过程之间的定量权衡，这表明搅拌摩擦焊接的制造周期时间减少了60％，重复组装成本减少了20％。

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