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In this paper, a practical modeling method is presented, integrating simulation with test and measurement for a vibration table. Servovalve, hydraulic actuator and load are modeled as main components of a single channel vibration table. The system components are tested under both steady state and dynamic conditions. Servovalve steady state measurements are used to model nonlinear behavior instead of using purely parametric approach. Frequency response data is used in linear 2nd order transfer function approximation for the system. Mathematical models and look-up tables are generated using fundamental equations and conducting basic experiments. Developed models are later integrated to build the complete model for the vibration table in MATLAB-SIMULINK. The obtained model is intended to develop prototype models for any given vibration table configuration in a flexible and reliable design environment.

It is becoming a greater challenge to win a race as more and more technologies are put into use to enhance vehicle-handling characteristics. Vehicle handling during cornering and braking is one of the crucial performance characteristics that is continuously improved upon. To help the driver achieve the best handling performance on the track, suspensions are tuned to optimize for the specific track and racing conditions. Typically 4-post test rigs are used to test for the heave, pitch, roll and torsional frequencies of the suspensions. However three more actuators (aeroload actuators) become necessary to tune the suspensions at the correct ride height by including the aerodynamic effects. By means of a 7-post testing system an optimization procedure is executed to improve handling performance. An instrumented vehicle is driven on the track. The response of the vehicle is then replicated on a 7-post system using Iterative Control System (ICS) software.