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首页> 外文会议>Proceedings of the 22nd International Conference of the System Dynamics Society >Time for a hundred visions and revisions:A system-dynamics study of the impact of concurrentengineering on supply chain performance
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Time for a hundred visions and revisions:A system-dynamics study of the impact of concurrentengineering on supply chain performance

机译：进行一百次愿景和修订的时间：系统工程学研究并行工程对供应链绩效的影响

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Concurrent engineering is now generally regarded as a fruitful approach to shorteningdevelopment times in product development. Concurrent engineering leads to earlierfeedback and more intense communication between the different stages in productdevelopment. But, what is its effect on supply chain performance once the design thathas thus been detailed out has to be manufactured? And, vice versa, to what extentdan experiences in manufacturing during production ramp-up influence productdevelopment performance?This paper focuses on these two questions, that both look at the interfaces betweenproduct development and supply chain operations. It presents a quantitative systemdynamics study of a real-world case from the aerospace industry. In aerospace,product development typically takes many years and costs tens to hundred of millions.Our analysis suggests that both causal links between concurrent product developmentand supply chain operations can have a major impact on performance in aerospacesupply chains.Firstly, concurrent engineering leads to ealier avaialability of preliminary designspecs to manufacturing operations. This then leads to an earlier start of production,based on these preliminary designs. These earlier production starts mitigate the effectsof production schedule pressure on production quality. This is because workloads donot rise to extreme levels, as a result of the timely start. In this manner, learningeffects and associated productivity gains are achieved earlier. This then leads to asmoother production ramp-up and therefore better delivery performance.Secondly, when concurrent engineering leads to earlier availability of design info,which leads to earlier production starts, this also has the effect of earlier signalling ofdesign flaws and shortcomings. Most, if not all, designs turn out to suffer fromproblems from a manufacturability perspective that only become apparent onceproduction processes really become operational. These design flaws that are identifiedealier can now be fed back to product development, where they lead to improveddesigns. The earlier this feedback takes place, the more productive it becomes. In oursimulation study, having this feedback from production taking place led to a dramaticimprovement in supply chain costs, simply because this led to much higher designquality during production ramp up and associated lower rework and hiring costs.
机译：并行工程现在通常被认为是一种有效的缩短方法 产品开发中的开发时间。并行工程导致更早的发展 产品不同阶段之间的反馈和更紧密的沟通 发展。但是，一旦设计 如此详细地说明了必须制造吗？反之亦然 丹在生产过程中的经验，对产品产生影响 发展表现？ 本文着眼于这两个问题，它们都着眼于两者之间的接口。 产品开发和供应链运营。它提出了一个定量系统 航空业实际案例的动力学研究。在航空航天领域， 产品开发通常需要很多年，花费数千万至数亿美元。 我们的分析表明，并发产品开发之间的两个因果关系 和供应链运营可能会对航空航天业的绩效产生重大影响 供应链。 首先，并行工程导致初步设计的可用性更高 生产操作规范。这样就可以更早地开始生产， 基于这些初步设计。这些较早的生产开始减轻了影响 生产进度压力对生产质量的影响。这是因为工作量确实 由于及时启动而没有上升到极端水平。通过这种方式，学习 效果和相关的生产率提高是较早实现的。然后导致 平稳地增加生产，因此提供更好的交付性能。 其次，当并行工程导致较早提供设计信息时， 导致较早的生产开始，这也具有较早发出信号的作用 设计上的缺陷和不足。大多数（如果不是全部）设计都遭受了 从可制造性的角度来看，这些问题只会一次出现 生产过程真正开始运作。这些已发现的设计缺陷 现在可以将产品反馈给产品开发，从而带来改进 设计。这种反馈越早发生，它就会变得越有生产力。在我们的 模拟研究，从生产中获得反馈，导致了戏剧性的变化 供应链成本的改善，仅仅是因为这导致了更高的设计 在生产过程中提高质量，并降低返工和雇用成本。

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