A new method for estimating community noise changes due to aircraft technology variations
A new method for estimating community noise changes due to aircraft technology variations
复制标题
一种估计由于飞机技术变化引起的社区噪声变化的新方法
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
I. Flindell
中科院分区：
文献类型：
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作者：
Athanasios P. Synodinos;R. Self;Antonio J. Martinez;I. Flindell
未来的空中交通增长预测强调了航空业采取新的环境减排战略的必要性，其中包括采用新的飞机设计和技术。因此，准确预测这些策略的噪声影响具有重要意义。现有工具的可靠性取决于参数之间的权衡，例如保真度水平、对机密数据的依赖性以及实验数据的成本和准确性。本文提出了一种创新、灵活且简化的飞机噪声预测方法，绕过了现有模型的困难。基于通过现有工具或公开数据库了解社区噪声水平的场景，所提出的方法确定了飞机技术变化引起的变化，例如涡轮风扇发动机涵道比的增加。该方法有望适用于翼身飞机等新设计，同时，通过调整输入变量，它还可以估计运行水平变化的噪声影响。为了说明所提出的方法，该方法是更好地理解环境和经济相互依赖性的更广泛努力的一部分，我们将噪声估计与现有的 NPD 数据进行了比较
Future air traffic growth forecasts underline the need for new environmental abatement strategies for aviation, involving, among others, the adoption of new aircraft designs and technologies. Accurately predicting the noise impact of these strategies is therefore a matter of significance. The reliability of existing tools is governed by tradeoffs between parameters such as their fidelity level, their dependance on confidential data, as well as the cost and accuracy of experimental data. This paper proposes an innovative, flexible and simplified method for aircraft noise prediction that by-passes the difficulties of existing models. Based on scenarios where community noise levels are known through existing tools or publicly available databases, the proposed method determines variations resulting from aircraft technology changes, such as the increase of the bypass ratio of a turbofan engine. The method shows promise of being applicable to new designs like the wing body aircraft, whereas, by adapting the input variables, it can also estimate the noise impact of changes at operational level. To illustrate the proposed method, which is part of a wider effort to better understand environmental and economic interdependencies, noise estimations are compared to existing NPD data