A bogie frame lateral vibration control device

Abstract

The invention provides a lateral vibration control device of a bogie frame, which belongs to the technical field of railway rolling stock. It includes a bogie composed of a frame, a wheelset and a suspension element, and the frame, the vehicle body and the wheelset are respectively connected by a secondary suspension and a primary suspension. The additional vibrator is composed of a spring and a damper in parallel, its free end is provided with a mass block, the other end is consolidated with the frame longitudinal beam, and the mass block is provided with a sensor; the front and rear end beams of the frame are provided with inertial actuators. The sensor on the additional vibrator is connected with the controller through the signal line, detects the state of the displacement, velocity and acceleration of the additional vibrator relative to the frame, introduces the time delay, and calculates and outputs the control signal to the inertial actuator in real time through the controller. The additional vibrators are horizontally arranged on the inner side of the longitudinal beams on both sides of the frame, and the left and right sides are arranged crosswise. The range of the time delay is 1 to 100 ms. Mainly used for high-speed bogie manufacturing.

Description

Technical field: [0001] The invention belongs to the technical field of railway locomotives, in particular to the active control technology of vehicle bogie frames. Background technique: [0002] The electromechanical active control of bogies is a new technology. With the improvement of the speed level of high-speed railways at home and abroad and the development of electromechanical control technology, the application of active or semi-active control technology in the field of high-speed railways will become more and more common. The lateral snaking stability of wheel-rail vehicles is one of the most concerned issues in the design and application of vehicles. The wheel sets of wheel-rail vehicles adopt conical treads to facilitate the vehicle to pass through the curve, but it will cause lateral snaking motion when the vehicle runs straight. When the running speed When the critical speed is exceeded, the lateral snaking motion of the vehicle becomes unstable, resulting in se...

AI Technical Summary

Problems solved by technology

However, during the service of the vehicle, the failure of the suspension components, the wear of the tread, the deterioration of the line conditions and other reasons lead to the decrease of the lateral stability of the vehicle.

The high-speed bullet trains in actual operation in China often have accidents where the vibration acceleration of the frame exceeds the standard due to insufficient stability and the alarm stops, which affects the normal and safe operation of the train

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