Theoretical and Experimental Analysis of the Nonlinear Characteristics of an Air Spring With an Orifice
- 1 February 2013
- journal article
- Published by ASME International in Journal of Vibration and Acoustics
- Vol. 135 (1), 011012
- https://doi.org/10.1115/1.4007677
Abstract
We herein propose a simple but accurate method for calculating the dynamic properties of an air spring that uses an orifice to produce a damping force. Air springs are commonly used in rail, automotive, and vibration isolation applications. However, because this type of air spring has nonlinear flow characteristics, accurate approaches have not yet been proposed. The restoring and damping forces in an air spring with an orifice damper vary with the amplitude of the body. This amplitude dependency has not been considered in previous studies. We herein propose a simple model for calculating the air spring constant and damping coefficient. However, this requires iterative calculation due to the nonlinearity of the air spring. The theoretical and experimental results are found to agree well with each other. The theoretical equations provide an effective tool for air spring design.Keywords
This publication has 8 references indexed in Scilit:
- Optimum Design Method of Air Suspension with Viscous RestrictionTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2008
- Effects of Restriction Characteristics on Characteristics of Air SuspensionTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2008
- Air Suspension Dimensionless Analysis and Design ProcedureVehicle System Dynamics, 2001
- Fundamental investigation on air damper. 2nd Report. Theoretical and experimental study.TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1990
- Fundamental investigation on air damper. (1st report. Theoretical analysis).TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1990
- The influences of nonlinearities on air spring vibration isolation characteristics.TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1986
- Design of Laminar Flow Restrictors for Damping Pneumatic Vibration IsolatorsCIRP Annals, 1984
- Vibration of Air Suspension Vehicles and their DesignTransactions of the Japan Society of Mechanical Engineers, 1969