【24h】

Development of a Generic Fleet-Level Noise Methodology

机译:通用舰队级噪声方法学的发展

获取原文

摘要

Future air transportation demand forecasts suggest that environmental concerns such as noise will be exacerbated beyond their current level. Although detailed airport noise modeling is available with the current fleet, a rapid, flexible, and more generic method is desired to evaluate fleet-level metrics with respect to new technologies or forecasted changes in demand. Although some work has been done to this extent, only the area of the 65 dB contour has been considered as the relevant metric. These methods cannot account for the shape of the contour, which has far-reaching implications for the ultimate metric: population affected. Moreover, the 65 dB contour as the lone contour of interest is a paradigm that, recently, has begun shifting to include other contour levels. This paper presents a generic fleet-level noise methodology that leverages the fidelity of detailed modeling software. By performing generic aircraft operations up front, these events can be rapidly recombined later to perform trades of various noise mitigation strategies. By moving the detailed noise modeling 'off-line' and making the appropriate assumptions, some of the fidelity of these models can be propagated earlier into the decision-making process. The methodology was used to demonstrate two simple proofs of concept that evaluate the method by accuracy and process criteria. Finally, discussions for validation of assumptions and future work to improve accuracy are included.
机译:未来的航空运输需求预测表明,诸如噪音之类的环境问题将加剧,超出目前的水平。尽管当前机队可以使用详细的机场噪声建模,但仍需要一种快速,灵活且通用的方法来评估机队级指标,以评估新技术或预测的需求变化。尽管已在此程度上进行了一些工作,但仅将65 dB轮廓的面积视为相关指标。这些方法无法解决轮廓形状的问题,而轮廓形状对于最终指标(受影响的人口)具有深远的影响。此外,65 dB等高线是唯一感兴趣的等高线,它是最近已开始转变为包括其他等高线电平的范例。本文介绍了一种通用的车队级噪声方法,该方法利用了详细建模软件的保真度。通过预先执行通用飞机的操作,这些事件可以在以后迅速重新组合以执行各种降噪策略的交易。通过离线移动详细的噪声模型并做出适当的假设,可以将这些模型的某些保真度更早地传播到决策过程中。该方法被用来演示两个简单的概念证明,可以通过准确性和过程标准对方法进行评估。最后,讨论了对假设的验证以及为提高准确性而进行的未来工作。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号