...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Aeronautical Journal >An integrated methodology to assess the operational and environmental performance of a conceptual regenerative helicopter
【24h】

An integrated methodology to assess the operational and environmental performance of a conceptual regenerative helicopter

机译：评估概念性再生直升机的运营和环境绩效的综合方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper aims to present an integrated multidisciplinary simulation framework, deployed for the comprehensive assessment of combined helicopter-powerplant systems at mission level. Analytical evaluations of existing and conceptual regenerative engine designs are carried out in terms of operational performance and environmental impact. The proposed methodology comprises a wide-range of individual modeling theories applicable to helicopter flight dynamics, gas turbine engine performance as well as a novel, physics-based, stirred reactor model for the rapid estimation of various helicopter emissions species. The overall methodology has been deployed to conduct a preliminary trade-off study for a reference simple cycle and conceptual regenerative twin-engine light helicopter, modeled after the Airbus Helicopters Bo105 configuration, simulated under the representative mission scenarios. Extensive comparisons are carried out and presented for the aforementioned helicopters at both engine and mission level, along with general flight performance charts including the payload-range diagram. The acquired results from the design trade-off study suggest that the conceptual regenerative helicopter can offer significant improvement in the payload-range capability, while simultaneously maintaining the required airworthiness requirements. Furthermore, it has been quantified through the implementation of a representative case study that, while the regenerative configuration can enhance the mission range and payload capabilities of the helicopter, it may have a detrimental effect on the mission emissions inventory, specifically for NO_x (Nitrogen Oxides). This may impose a trade-off between the fuel economy and environmental performance of the helicopter. The proposed methodology can effectively be regarded as an enabling technology for the comprehensive assessment of conventional and conceptual helicopter-powerplant systems, in terms of operational performance and environmental impact as well as towards the quantification of their associated trade-offs at mission level.
机译：本文旨在提出一个综合的多学科模拟框架，该框架可用于在任务级别对直升机-动力装置组合系统进行综合评估。现有的和概念性的再生式发动机设计的分析评估是根据运行性能和环境影响进行的。拟议的方法包括适用于直升机飞行动力学，燃气轮机性能以及适用于快速估算各种直升机排放物的新颖，基于物理的搅拌反应堆模型的广泛的单个建模理论。已采用总体方法对参考简单周期和概念性再生双引擎轻型直升机进行了初步的权衡研究，该模型以空客直升机Bo105的配置为模型，并在代表性任务情景下进行了模拟。对上述直升机在发动机和任务级别进行了广泛的比较，并给出了一般的飞行性能图，包括有效载荷范围图。从设计权衡研究中获得的结果表明，概念性再生直升机可以在有效载荷射程方面显着提高，同时保持所需的适航性要求。此外，通过实施一个具有代表性的案例研究已经量化了，虽然再生配置可以增强直升机的任务范围和有效载荷能力，但它可能会对任务排放清单产生不利影响，特别是对于NO_x（氮氧化物） ）。这可能会在直升机的燃油经济性和环境性能之间进行折衷。从操作性能和环境影响以及在任务级别量化相关权衡的角度来看，所提出的方法可以有效地视为对常规和概念性直升机动力系统进行综合评估的辅助技术。

著录项

  • 来源
    《The Aeronautical Journal》 |2015年第1211期|67-90|共24页
  • 作者

    F. Ali; I. Goulos; V. Pachidis;

  • 作者单位

    Propulsion Centre School of Aerospace, Transport and Manufacturing Cranfield University Bedford UK;

    Propulsion Centre School of Aerospace, Transport and Manufacturing Cranfield University Bedford UK;

    Propulsion Centre School of Aerospace, Transport and Manufacturing Cranfield University Bedford UK;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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