Technological Process
The wagon is secured to the dead-end support bracket using a standard coupling device. On the opposite side of the wagon, a loading hydraulic cylinder is attached to a rigid, stable frame structure connected to the dead-end bracket, also through a standard coupling device. The hydraulic cylinder is stationary relative to the foundation. The loading of the wagon structure is performed statically by the hydraulic cylinder according to the specified “force-time” cycle.
Components:
- Metal frame of the bench with coupling devices for securing the tested wagon
- Power hydraulic cylinder
- Pump station
- Hydraulic control panel with control and measuring instruments
- Control cabinet for the pump station (electrical power)
- Bench control panel
- Notebook computer with software
Technical Specifications:
| Parameter | Value |
| Force range on the hydraulic cylinder rod, kN | 300…4000 |
| Force setting accuracy, no more than, kN | +/- 40 |
| Load increase and decrease rate range, kN/min | 200…400 |
| Hold time at specified force, no more than, min | 30 |
| Loading pattern | cyclic |
| Maximum pressure in the test bench lines | 28 MPa |
| Nominal stroke of the hydraulic cylinder rod | 250 mm |
The bench was developed and manufactured for OAO "NIIvagonostroeniya," Moscow.
