What it does
The auxiliary handling robot realizes automatic wheel positioning and installation, reduces the complexity of manual operation and improves the testing efficiency; The core test bench independently controls the wheel-rail operation state
Your inspiration
Combined with the trend of intelligent manufacturing, the auxiliary handling robot and the precision test bench are integrated to solve the problems of difficult wheel and rail installation and positioning, and complex test parameter control, aiming to provide efficient experimental support for the safety design of the EMU with automated collaboration.
How it works
The auxiliary handling robot accurately installs the wheels to the test platform, accurately locates the contact points between the wheels and the track, regulates the creep state between the wheels and the track, collects test data such as contact position, pressure and creep in real time, analyzes the contact behavior and evolution law of the wheel and rail, provides a scientific basis, and evaluates the safety and reliability of the motor wheel and rail system.
Design process
Functional module planning: determine the architecture of "test bench assisted handling robot", and the robot is responsible for the precise assembly and adjustment of wheels to simplify manual operation; The test bench undertakes the core test, and the contact position and creep state are accurately controlled by independently controlling the wheel-rail operation test bench, and various operating parameters are simulated. Algorithm and model innovation: Fusion of discrete time transfer matrix method and Newmark-β method to establish a flexible wheelset vibration model, breaking through the limitation of a single model; The auxiliary handling robot is introduced, combined with the new explicit integration method to solve the dynamic model of the frame and the track wheel, which is suitable for high-speed and complex working conditions. A test platform was built, multiple rounds of simulation tests were carried out, and data such as wheel-rail contact position and pressure were collected to verify the model and system performance. According to the test results, the robot action accuracy and test bench control algorithm are optimized to ensure that the dynamic states such as wheels are not round and wear can be accurately captured,
How it is different
The creativity of this study lies in the combination of the discrete time transfer matrix method and the Newmark-β method, which successfully establishes the vibration model of the flexible wheelset, and breaks through the limitations of the traditional single model through efficient dynamic simulation and experimental verification. At the same time, the innovative introduction of the auxiliary handling robot helps users to accurately install and position the wheels on the test platform, simplifying the operation process and improving the testing efficiency. The integration of the model with the new explicit integration method solves the framework and the dynamic model of the track wheel block shows the high-precision performance in high-speed operation and complex track surface conditions, and effectively captures the dynamic disturbances such as wheel malroundness, wear and depression. The overall solution improves the safety and reliability of the EMU design
Future plans
In the future, we will deepen the integration of technologies, optimize the collaboration between robots and test benches, and expand test scenarios to adapt to more complex working conditions. Combined with intelligent algorithm upgrade data analysis, promote in-depth linkage with actual operation and maintenance, and continue to iterate to help the safe and reliable development of the EMU system.
Share this page on