train vt. 1.训练;培养,养成;锻炼(身体);【园艺】使向一定方向生长,整形,整枝 (up; over)。 2.瞄准,对准(炮等) (on; upon)。 3.〔罕用语〕拖,曳。 4.〔古语〕引诱,吸引 (away; from)。 vi. 1.接受训练;练习;锻炼身体 (for)。 2.〔口语〕坐火车旅行;〔美俚〕交际,来往;〔美俚〕跳来跳去。 At school we should train young children (how) to be good citizens. 我们在初等学校应当训练青少年(如何)当好优秀公民。 half-trained 训练[锻炼 ]不够的。 over-trained 训练[锻炼]过度的。 under-trained 训练[锻炼]差的。 train fine 严格训练[锻炼]。 He was trained to be a doctor but later on he decided to become an actor instead. 他接受的是医生的训练,可是后来却决定做演员了。 Every morning he spends two hours training for race. 他每天早晨花两个小时锻炼赛跑。 train down (选手)练轻体重。 〔口语〕 train it 坐火车去。 train off 用锻炼减轻[减肥];(子弹)打歪,没打中。 train on 练好。 train with 〔美国〕交往;合作[联合]。 n. 1.列车,火车。 2.队伍;一行,排,列;系列;〔集合词〕随从,随员。 3.链,(思想等的)连续;一连串(事件);接着发生的事件,后事,结果。 4.次序;状态。 5.拖在后头的东西;衣裙;【军事】辎重队;后勤部队;(炮架的)架尾;彗星的尾;鸟尾;导火线;(重而长的)大雪橇。 6.【机械工程】(传动的)轮列,轮系;齿轮组。 a down [an up] train 下行[上行]列车。 a funeral train 送丧的队伍。 a long train of sightseers 一大批游客。 an accommodation [express] train 普通[特快]列车。 a through train 直达列车。 All is now in (good) train. 完全停当了,全好了。 Everything fell into its old train again. 一切又恢复原状了。 train of mechanism 【机械工程】机构系。 train of powder 【军事】导火线。 by train 坐火车。 catch [make] one's train 正赶上火车。 in (good) train 准备妥当。 in the train of 接着,继…之后。 miss one's train 没赶上火车。 put on a special train 挂临时加车。 put things in train 安排妥贴。 ride the gravy train 获得赚钱好机会;干不费劲的活儿。 take train to ... 坐火车去…。 train de luxe 花车。
Comparison of valve train dynamic models 配气机构动力学模型的比较研究
The results show that moderate lateral link stiffness between cars will do no harm to train dynamic curving behavior 适当的横向连接刚度对列车的曲线通过性能是无害的。
The goal of the thesis is to form an integrated theory for high-speed train dynamics . the work of the study can instruct the design of the high-speed train in china 本文的目的是通过研究,形成完整的高速列车动力学分析理论体系,为我国高速列车的开发研制提供理论基础。
This paper uses the program to calculate the dynamics performance of small slack coupler that designed by qiqiha'er vehicle ( grounp ) company . by compared maximum coupler force and maximum acceleration of car body with common slack coupler at condition of train starting, braking, emergency braking and releasing, we verified that small slack coupler is better than common slack coupler in dynamics performance . this paper also calculated the train dynamics performance parameter with different buffer and braking system, running in different line and using different operating method 本文利用列车纵向动力学模拟程序,计算了齐齐哈尔车辆(集团)公司研制的13号小间隙防脱车钩的纵向动力学性能,通过比较各个车钩间隙下列车最大纵向车钩力和列车最大加速度的数值,得出小间隙车钩在列车启动工况、常用制动工况、紧急制动工况、缓解工况的纵向动力学性能都较原有车钩性能优异的结论。
According to different research objectives, four kinds of vehicle dynamic models ( named from model a to model d ) and two types of train dynamic models ( model e and model f ) are established in this thesis . during the modeling process of the vehicle and train systems, nonlinearities arising from wheel / rail contact geometry, wheel / rail interactive forces and suspension characteristics are fully considered . the modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too 本文按照研究目的的不同,建立了4种车辆动力学模型(模型a模型d)和2种列车动力学模型(模型e和模型f),建模过程中尽可能多地考虑了列车(车辆)系统中的各种非线性因素,详细给出了风挡装置、车钩及缓冲器的具体建模方法。
Among the six models, model a and model b can be used to study the vehicle stability and curve negotiation under different track situations . model c and model d can be used to carry out the stability, dynamic curving behavior and ride comfort of the high-speed passenger car . model e and model f are three-dimension train dynamic models which consist of three cars ( head car, intermediate car and tail car ) 所建立的6种动力学模型中,模型a和模型b可用于研究不同轨道条件下车辆的运动稳定性及动态曲线通过性能;模型c和模型d可以用来研究车辆的运动稳定性、动态曲线通过性能及运行平稳性;模型e和模型f是列车系统动力学分析模型,都是由三节车组成的列车单元,三车列车模型作为一个最小的列车单元,包含了头车、中间车和尾车,已能够反映整个列车的动力学特性。
The assessment system software for driver's operation is designed and produced based on experts, knowledge about train traction calculations, operation experiences of excellent drivers, longitudinal profiles of running lines, train compositions as well as performance data of locomotives and rolling stocks, by use of object-oriented programming technology, in combination with data processing of train running monitoring device, train traction calculation, train dynamics analysis and optimized operation 摘要以列车牵引计算专家知识、优秀司机的操纵经验、行车线路纵断面、列车编组及机车、车辆的特性数据等为基础,将机车运行监控装置的数据处理、列车牵引计算、列车动力学分析及优化操纵等相关内容有机地结合起来,利用面向对象的编程技术实现了机车司机操纵评价软件的设计和制作。
In this paper, the dynamics problem of train with magneto-rheological coupled wheelsets are also researched and put forward a new method of computing train dynamics-cycle variable method . in succession, a train dynamics model based on cycle variable method is established and the relevant computer simulation software on train dynamics is drawn up 本文还从列车动力学的角度对磁流变耦合轮对的动力学性能进行了研究,提出了一种计算列车动力学的新方法??循环变量法,建立了基于循环变量法的列车动力学模型,编制了列车动力学计算软件。
In this paper, the dynamics problem of train with magneto-rheological coupled wheelsets are also researched and put forward a new method of computing train dynamics-cycle variable method . in succession, a train dynamics model based on cycle variable method is established and the relevant computer simulation software on train dynamics is drawn up 本文还从列车动力学的角度对磁流变耦合轮对的动力学性能进行了研究,提出了一种计算列车动力学的新方法??循环变量法,建立了基于循环变量法的列车动力学模型,编制了列车动力学计算软件。
In this paper, the dynamics problem of train with magneto-rheological coupled wheelsets are also researched and put forward a new method of computing train dynamics-cycle variable method . in succession, a train dynamics model based on cycle variable method is established and the relevant computer simulation software on train dynamics is drawn up 本文还从列车动力学的角度对磁流变耦合轮对的动力学性能进行了研究,提出了一种计算列车动力学的新方法??循环变量法,建立了基于循环变量法的列车动力学模型,编制了列车动力学计算软件。