Vibrations on agricultural tractors due to soil irregularities cause significant health issues for operators. Reducing noise and vibration exposure is a priority for the (Italian) National Institute for Insurance against Accidents at Work (INAIL). While commercial seat or cabin suspension systems exist, they mainly address vertical vibrations. The authors developed a new mechanism to reduce both horizontal and rotational vibrations. To test these mechanisms, an oscillating platform driven by two double-effect pneumatic actuators with proportional-flow electro-valves was designed to simulate the tractor cabin motion. This paper experimentally tests a simplified 1 DoF electro-pneumatic positioning system adopting one double-effect pneumatic cylinder, characterizing its static and dynamic response. The cylinder is also instrumented with a couple of pressure transducers to clarify the role of the pressure on the positioner’s response. The results identify a set of transfer functions, which are then used to design a controller capable of reproducing standard ISO 5008:2002 road profiles.

Identification of the electromechanical model of a pneumatic positioner for the dynamic actuation of an oscillating platform / Antonelli, M. G.; Brunetti, J.; D’Ambrogio, W.; Fregolent, A.; Marafini, F.. - (2024), pp. 3731-3741. (Intervento presentato al convegno ISMA2024 International Conference on Noise and Vibration Engineering USD2024 International Conference on Uncertainty in Structural Dynamics tenutosi a Leuven; Belgium).

Identification of the electromechanical model of a pneumatic positioner for the dynamic actuation of an oscillating platform

A. Fregolent;F. Marafini
2024

Abstract

Vibrations on agricultural tractors due to soil irregularities cause significant health issues for operators. Reducing noise and vibration exposure is a priority for the (Italian) National Institute for Insurance against Accidents at Work (INAIL). While commercial seat or cabin suspension systems exist, they mainly address vertical vibrations. The authors developed a new mechanism to reduce both horizontal and rotational vibrations. To test these mechanisms, an oscillating platform driven by two double-effect pneumatic actuators with proportional-flow electro-valves was designed to simulate the tractor cabin motion. This paper experimentally tests a simplified 1 DoF electro-pneumatic positioning system adopting one double-effect pneumatic cylinder, characterizing its static and dynamic response. The cylinder is also instrumented with a couple of pressure transducers to clarify the role of the pressure on the positioner’s response. The results identify a set of transfer functions, which are then used to design a controller capable of reproducing standard ISO 5008:2002 road profiles.
2024
ISMA2024 International Conference on Noise and Vibration Engineering USD2024 International Conference on Uncertainty in Structural Dynamics
Dynamic testing environment, Soil irregularity, Digital Twin, Pneumatic actuation, Agricultural tractors
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Identification of the electromechanical model of a pneumatic positioner for the dynamic actuation of an oscillating platform / Antonelli, M. G.; Brunetti, J.; D’Ambrogio, W.; Fregolent, A.; Marafini, F.. - (2024), pp. 3731-3741. (Intervento presentato al convegno ISMA2024 International Conference on Noise and Vibration Engineering USD2024 International Conference on Uncertainty in Structural Dynamics tenutosi a Leuven; Belgium).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1726047
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