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Full-scale measurement and analysis of train slipstreams and wakes. Part 2 Gust analysis

机译：列车滑浪和唤醒的全规模测量和分析。第2部分阵风分析

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Part 1 of this paper reports results from the extensive full-scale slipstream measurements carried out as part of the AeroTRAIN project, and in particular concentrates on the ensemble analysis of this data. This paper concentrates on the analysis of maximum gusts, in order to make suggestions for modifications to the current technical specifications for interoperability (TSI) methodology. The very large data set obtained for one particular high-speed train type (the S-103) enabled the variation of slipstream gusts with vehicle speed and wind speed to be determined. It was also possible to carry out a statistical analysis of the gusts that enabled the standard uncertainty of the TSI gust parameter to be determined. It was shown that for most trains the maximum gusts occurred in the near wake of the train, but for double-unit trains the maximum gusts could occur around the gap between the units and for locomotive/coach combinations the maxima could occur around the nose of the locomotive or at the discontinuity between the train and the locomotive. Perhaps the most significant result, which could allow a considerable simplification of the TSI methodology, was that if both trackside and platform measurements for a particular train were plotted against height above the rail, then, with very few exceptions, they fell onto one curve, which implies that a trackside measurement could replace the current required platform measurement. © IMechE 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.
机译：本文第1部分报告了作为航空项目一部分进行的广泛的全尺度滑浪测量结果，特别是集中在对该数据的集合分析上。本文专注于对最大阵风的分析，以提出对互操作性（TSI）方法的当前技术规范的修改建议。为一个特定的高速列车型（S-103）获得的非常大的数据集使得具有以待确定的车速和风速的滑流阵风的变化。还可以对阵风进行统计分析，使能确定TSI阵风参数的标准不确定性。结果表明，对于大多数列车，最大阵风在火车的近似发生时发生，但对于双单元列车，可以在单位和机车/长途汽车组合之间发生最大阵风，最大值可能发生在鼻子周围机车或火车和机车之间的不连续性。也许是最重要的结果，这可能允许对TSI方法进行相当大的简化，是，如果特定火车的轨道侧和平台测量都被绘制在轨道上方的高度，那么，它们的例外很少，它们落到了一个曲线上，这意味着轨道旁观测量可以取代当前所需的平台测量。 ©imeche 2013转载和权限：sagepub.co.uk/journalsmissions.nav。

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