beaten track
- beaten track的基本解释
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n.
踏平的路, 惯例, 熟路
- 相似词
- 更多 网络例句 与beaten track相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on rail/wheel reaction and track/bride reaction theory and systems engineering theory, new vehicle-track and vehicle-track-bridge system dynamic models are established and discussed in details, including ballast track model and ballastless track model. The characteristics of the models are:(1) vehicle-track and vehicle-track-bridge system dynamic models are coupled in vertical and lateral;(2) track vibration on bridge is taken in account, track on bridge is considered as one or two layer continuous-point supported rail model, according to actual track structure, interaction between vehicle and bridge transfer from track structure;(3) three type of ballastless track models (tieembanked, elastic-tie-block, slab track) are presented;(4) models reflect the main feature of actual vehicle, track and bridge structure, the response computation frequency of models is relatively broad, which can be applied to analyze both low frequency and high frequency vibration.
基于轮轨相互作用和线桥相互作用特点,本文从系统工程角度出发建立了车辆、有碴轨道和无碴轨道、简支箱梁桥垂向和横向耦合系统动力分析模型,该系统模型具有以下特点:(1)车线、车线桥体系均考虑为垂向、横向耦合振动系统,车线间通过轮轨接触几何关系耦合,轨道与桥梁间通过轨道与梁体间的力与位移协调条件耦合;(2)充分考虑桥上线路在车线桥系统中参振作用,根据桥上线路轨道结构特点将桥上轨道结构模型具体化,即对桥上轨道结构视为多层支承体系,车桥间的动力作用通过轨道结构来传递;(3)建立了三种形式无碴轨道动力分析模型,即长轨枕埋入式、弹性支承块式和轨道板式无碴轨道模型;(4)系统模型详细,分析频带宽,适用范围较广。
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Firstly, from Gauss' equations and relative motion equations, the relation of control impulse and relative motion was expressed as analysis formulas and simplified based on the near circular condition. By deeply analyzing the mechanism of impulses in each directions (radial, in-track and cross-track directions) effect on relative motion respectively, two maneuvers to establish formation flying are provided: one is to utilize the impulses in radial and cross-track directions, the other is to utilize the impulses in along-track and cross-track directions. Both of the two methods can establish satellite formation flying of any configuration. The method with impulses irradial and cross-track directions needs only 3 impulses, while the method with impulses in along-back and cross-track directions needs 4 impulses. Lastly, by an example of establishing a space-circle formation flying, two maneuvers were compared with each other in the amount of impulses and fuel consuming estimation.
首先由高斯型拉格朗日轨道摄动运动方程得到轨道坐标系中控制冲量与轨道根数偏差的关系,基于近圆轨道的条件简化并带入相对运动方程,得到控制冲量与相对运动的关系表达式;通过深入分析各个方向(径向、沿迹向与轨道面法向)的控制冲量对相对运动的影响,给出了分别用径向与轨道面法向控制冲量组合和沿迹向与轨道面法向控制冲量组合实现编队捕获的两种控制策略;最后给出了一个空间圆编队捕获实例,并从燃料消耗、施加冲量次数及捕获时间等角度对比研究了两种控制策略的特点。
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Track roller: Singe flange 4 Double flange 2 Carrier roller: 2 Idler 1 Type of track: single grouser combined Tension mode of track: hydraulic Pitch: 203 mm Number of shoes 38 pieces Width of shoe 500 mm Length of track on ground 2570 mm Sealed and lubricated track ▲▲The pitch , numbers and width of track shoes are the same with the general track.
支重轮 单边四个双边二个托链轮二个引导轮一个履带型式单履齿组合式履带涨紧型式液压涨紧节矩 203 mm 履带板数 38 块履带板宽 500 mm 履带接地长度 2570 mm 密封和润滑履带▲▲该履带的节距、履带板数、履带板宽与普通的履带相同。
- 更多网络解释 与beaten track相关的网络解释 [注:此内容来源于网络,仅供参考]
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beaten track:踏平的路, 惯例
beaten silver | 银箔 | beaten track | 踏平的路, 惯例 | beaten | 挫败 打败了的
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major repair of track:线路大修
起道修 ;线路中修 track raising repair;track intermediate overhaul | 线路大修 major repair of track | 线路更新 ;线路大修 track renewal;track overhauling
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track maintenance section; permanent way gang:养路工区
养路领工区 track subdivision; track maintenance subdivision | 养路工区 track maintenance section; permanent way gang | 养路领工员 track master; track supervisor