TY  - JOUR
PY  - 2011//
TI  - Gas dampers: model development and potential ride performance evaluation
JO  - Vehicle system dynamics
A1  - Prada, Jorge Gonzalez
A1  - Alonso, Asier
A1  - Vinolas, Jordi
A1  - Carrera, Xabier
A1  - Reybrouck, Koenraad
A1  - Giménez, José Germán
SP  - 199
EP  - 218
VL  - 49
IS  - 1-2
N2  - The main characteristic of a gas damper (GD) is the use of gas as internal fluid, which offers an alternative to hydraulic shock absorbers. In this paper, a mathematical GD model is presented and validated. The use of a compressible fluid provides GD with a behaviour dependent on velocity, like conventional dampers, but also with a strong dependency on frequency and on stroke amplitude. This dependency allows an improvement in the traditional compromise between comfort and safety. A quarter-car model is used to evaluate the ride performance that can be expected using the GD, focusing on the cited compromise. Results are compared with the ride performance of a hydraulic shock absorber. Finally, a sensitivity study centred on the stiffness of the internal fluid is presented.<p /> 
LA  - en
SN  - 0042-3114
UR  - http://dx.doi.org/10.1080/00423110903248678
ID  - ref1
ER  -