城市轨道交通车辆专业英语.docVIP

. . COMPONENTS组成： 1.Car body车身 It is to accommodate passengers and the driver. 这是为了容纳乘客和司机。 Meanwhile, it is the basic component to connect to other devices or car bodies. 同时，它是连接到其他设备或车身的基本部件。 For the purpose of meeting the strength requirement while keeping the self-weight at its lowest. 为了满足强度要求，同时保持自重最低。 Integrated steel structure or light metal structure is adopted. 采用整体式钢结构或轻型金属结构。 It usually comprises of the floor, the roof, sides and end walls. 它通常包括地板、屋顶、侧壁和端壁。 2. Bogies转向架 Motor and trailer bogies are located between the car body and the track, to drag and guide the vehicles moving along the track. 汽车和拖车转向架位于车体与轨道之间，拖曳和引导车辆沿轨道运动。 They cab bear and transfer a variety of load from lines and the car body, easing its dynamic action. 他们从线路和车体上承担和传递各种载荷，减轻其动力作用。 It usually comprises of frame, spring suspension, wheel axle box and brake devices, etc. 它通常包括车架、弹簧悬架、车轮轴箱和制动装置等。 3. Traction and Buffer devices牵引缓冲装置 The devices function together as the coupler which helps to improve the vertical stability. 这些器件作为耦合器一起起作用，有助于提高垂直稳定性。 Buffer devices are included in couplers to mitigate the train jerk. 缓冲装置包括在耦合器中以减轻火车颠簸。 They are also used to connect the electrical lines and air lines between vehicles. 它们也用于连接车辆之间的电线和空气线。 4. Braking devices制动装置 They are crucial to the operation safety of the train. 它们对列车的运行安全至关重要。 They are installed in motor cars and trailer cars to ensure that the operation vehicles can be slow down as commanded and that the brake stopping distance is within required limit. 它们安装在机动车辆和拖车中，以确保操作车辆可以按命令减速，制动停止距离在规定的限度内。 In addition to conventional pneumatic braking, electro-dynamic braking is introduced. 除了传统的气动制动之外，还引入了电动制动。 collection set受电弓 The collectors are used to lead current to motor cars. 收集器是用来引导汽车电流的。 Methods: trolley, bow, side, third rail, pantograph collectors. 方法：台车、弓、边、第三轨、受电弓收集器。 As to the power supply, DC 750 V is widely used in many cities with metros, Beijing Metro. Shanghai Metro used DC 1500 V. DC 600V is rarely used. 至于电源，直流750 V广泛