Vibration mitigation of driver-operator in fore-and-aft direction by passive, active or semi-active vibration control systems
Project start: | 01.01.2006 |
Project end: | 31.12.2008 |
Programme: | VEGA |
Project number: | 2/6161/27 |
Institute position in the project: | The only one project investigator |
Project leader: | Juraj Stein |
Human body models for the fore-and-aft and the lateral directions were elaborated, including steering-wheel reaction. Their parameters depend on excitation intensity. Models were used in simulation of suspended driver’s seats in a rail vehicle and in a road vehicle. In-depth analysis of correct usage of various models of Coulomb friction in a single degree-of-freedom oscillator was undertaken and conditions for onset of chaotic oscillations were analysed.
In the field of modelling and analysis of longitudinal road unevenness the influence of non-standard road profiles and of the waviness parameter on the road unevenness indicators, as well as on vehicle vibratory response was analysed. A new road classification scheme was developed. The uncertainty of unevenness indicators was analysed, too.
In collaboration with SAS Institute of Measurement a compact measuring system using three-axial MEMS accelerometers was developed for in-vehicle vibration measurement and assessment of seating dynamic properties.
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