Title:
TEST SYSTEM AND TEST METHOD FOR NATURAL VIBRATION FREQUENCY OF BOGIE OF TRACK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/180477
Kind Code:
A1
Abstract:
A test system and a test method for the natural vibration frequency of a bogie of a track vehicle, which belong to the technical field of mechanical performance tests. The test system is composed of a test platform (1), vertical actuators (2), a half-vehicle mass simulation device (3) and vertical actuators (4), wherein wheelset clamping mechanisms (5) are installed on the test platform (1); the bottom of each of four corners of the test platform (1) is respectively connected to one downward vertical actuator (2); and the half-vehicle mass simulation device (3) is arranged above the test platform (1). During a test, wheels of a bogie are fixed to the test platform (1) by means of the wheelset clamping mechanisms (5), then the half-vehicle mass simulation device (3) is fixedly connected to a bogie bolster, a laser displacement sensor is respectively arranged at each of four corners above a side beam of a bogie frame, the laser displacement sensor is connected to a data collection system, an excitation signal is applied to each vertical actuator (2) through a hydraulic servo system, and the data collection system records the change of the displacement of an end for the side beam of the frame, thereby obtaining a response curve between a displacement and a frequency, so as to determine a natural vibration frequency in a formation corresponding to the frame and a vehicle body. The system has a simple structure and high test accuracy, and can really reflect the natural vibration characteristic of a vehicle.
Inventors:
WANG JINTIAN (CN)
XUAN DONGSHENG (CN)
ZHANG YANJI (CN)
XUAN DONGSHENG (CN)
ZHANG YANJI (CN)
Application Number:
PCT/CN2014/095852
Publication Date:
December 03, 2015
Filing Date:
December 31, 2014
Export Citation:
Assignee:
CHANGCHUN RAILWAY VEHICLES CO (CN)
International Classes:
G01M17/08; G01H13/00
Foreign References:
| CN104006977A | 2014-08-27 | |||
| CN203981412U | 2014-12-03 | |||
| CN102004041A | 2011-04-06 | |||
| CN202083536U | 2011-12-21 | |||
| CN101813567A | 2010-08-25 | |||
| CN203275101U | 2013-11-06 | |||
| JP4557908B2 | 2010-10-06 |
Attorney, Agent or Firm:
CHANGCHUN YIZHONG PATENT AND TRADEMARK OFFICE (GENERAL PARTNERSHIP) (CN)
长春众益专利商标事务所（普通合伙） (CN)
长春众益专利商标事务所（普通合伙） (CN)
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