Vehicle and bogie performance testing system

NegotiableUpdate on 07/13

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Explanation: The performance testing system for railway vehicles and bogies includes four sets of 6-degree-of-freedom excitation systems and a body dynamic simulator, which can achieve the measurement of mechanical parameters and characteristic research of locomotive vehicles and bogies, such as the measurement of overall stiffness, moment of inertia, damping coefficient and other parameters.

Product Details

1.1 Product Overview

The performance testing system for rail vehicles and bogies includes four sets of 6-degree-of-freedom excitation systems and a body dynamic simulator, which can achieve the measurement of mechanical parameters and characteristic research of locomotive vehicles and bogies, such as the measurement of overall stiffness, moment of inertia, damping coefficient and other parameters. This system has a wide range of functions and can be used for various testing applications. It can also assist finite element analysis in verifying and revising corresponding models.

1.2 Product Advantages and Technical Features

1.2.1 Innovation

Innovative multi degree of freedom load sensors are directly coupled and installed to accurately measure complex multi degree of freedom loads and bending moments.

1.2.2. Broad

A multi-purpose testing system can achieve functions such as measuring performance parameters of the entire vehicle and bogie assembly, durability fatigue testing, and vibration characteristic analysis.

1.2.3 Speed

Revise the accuracy and reliability of the simulation model, optimize the stability, comfort, and efficiency of bogies and rail transit vehicles.

1.2.4 Energy Efficiency

The optimized design of the electro-hydraulic servo system can effectively reduce flow requirements and improve energy efficiency.

Performance indicators and components of the vehicle and bogie performance testing system

Six degree of freedom incentive table

When applying excitation to each bogie frame, a two axle wheelset six degree of freedom excitation table system is required, which directly measures multi degree of freedom loads and torques through the use of six degree of freedom load sensors.

Sample interface

Longitudinal loading actuator cylinder (x2)

Constrained support

Hydraulic servo oil separator

Static support

Vertical actuator cylinder (x4)

Equipment foundation

Lateral actuator cylinder

Six degree of freedom load sensor (x2)

Load desktop

performance system

Specification of Six Free Load Sensor

be careful:

These numbers are general results of the sensor calibration and are not guaranteed parameter indicators, but can be used for uncertainty analysis of the system. If the measurement range exceeds the calibration range mentioned above, the resulting error may be higher than the parameters listed in the table above.

1. Root mean square of nonlinearity, hysteresis, repeatability, and estimated measurement range deviation

2. Estimation measurement range deviation caused by changes in fixed tooling boundary conditions

3. Deviation from the zero crossing line

4. The deviation of the output corresponding to the point with the same load during the positive and negative range changes in a single forward and reverse stroke loading

A 5.6x6 or 6x8 linear cross coupling matrix may be a necessary condition for achieving these estimated values