4-Poster Road Simulator

The 4-Poster test bench is a vehicle-specific testing system designed to simulate vertical road load conditions on complete vehicles. Four servo-hydraulic hydropulse actuators with integrated wheel fixtures generate wheel-individual vibration and load profiles in the vertical direction, allowing real operating conditions to be reproduced with high accuracy.
In contrast to multiaxial simulation tables, the 4-poster focuses on controlled vertical excitation of complete vehicles for the investigation of suspension systems, structural integrity and mounted components.
4-Poster
Road Simulator

The 4-Poster test bench is a vehicle-specific testing system designed to simulate vertical road load conditions on complete vehicles. Four servo-hydraulic hydropulse actuators with integrated wheel fixtures generate wheel-individual vibration and load profiles in the vertical direction, allowing real operating conditions to be reproduced with high accuracy.
In contrast to multiaxial simulation tables, the 4-poster focuses on controlled vertical excitation of complete vehicles for the investigation of suspension systems, structural integrity and mounted components.
Applications
- Durability and fatigue testing of complete vehicles under vertical vibration loads
- Functional testing of suspension systems, chassis structures and mounted components
- Structural validation under simulated road load conditions
- Testing of vehicle-mounted aggregates and superstructures
- Simulation of transport and operational loads
- Testing of transport containers, cargo and vehicle-based equipment






