TY  - CHAP
AU  - Szente, Viktor
AU  - Vad, János
AU  - Lóránt, Gábor
AU  - Fries, Ansgar
ED  - Palmberg, J O
TI  - Computational and Experimental Investigation on Dynamics of Electric Braking Systems
T2  - 7th Scandinavian International Conference on Fluid Power (SICFP'01)
PB  - Linköping Institute of Technology
CY  - Linköping
SN  - 9173730564
PY  - 2001
SP  - 263
EP  - 276
PG  - 14
UR  - https://m2.mtmt.hu/api/publication/1632961
ID  - 1632961
AB  - Electro-pneumatic (EP) components are frequently used in brake systems of commercial vehicles. The simulation of EP brake systems is of great importance in order to understand their dynamics for developing a control logic being robust but fulfilling the modern functional demands. On the other hand, the simulation aids the design of EP components being able to execute the commands of a precision control. The paper presents a flexible computational simulation tool being applied in industrial research and development related to complex mechatronics in brake systems for commercial vehicles. The Electric Braking System (EBS) case study presented herein comprises an air supply unit, an EBS modulator, piping, a diaphragm brake chamber, and the connected brake mechanism. The simulation environment is AMESim® 3.0. Considering the complexity of the EP components and the related phenomena, special models have been elaborated for the solenoid valves, piping, and the diaphragm brake chamber. The simulation results show good agreement with measurement data. The comparative numerical and experimental study confirmed that the simulation tool can be effectively used in design, research and development of EP brake systems.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Szente, Viktor
AU  - Hős, Csaba János
AU  - Istók, Balázs
AU  - Vad, János
AU  - Kristóf, Gergely
TI  - Gas Dynamic Pipe Flow Effects in Controlled Pneumatic Systems - A Simulation Study
JF  - PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING
J2  - PERIOD POLYTECH MECH ENG
VL  - 45
PY  - 2001
IS  - 2
SP  - 239
EP  - 250
PG  - 12
SN  - 0324-6051
UR  - https://m2.mtmt.hu/api/publication/1632963
ID  - 1632963
N1  - MatarkaID=765597
AB  - Electro-pneumatic modulators (EPMs) are widely used in controlled pneumatic systems. Their aim is to ensure a controlled operating pressure modulated at a high accuracy and high temporal resolution. This paper reports a computational case study representing the influence of gas dynamic pipe flow effects on the operation of a pneumatic system to be controlled by means of an EPM. The simulation has been carried out with use of simulation software AMESim version 3.01. Given that no standard gas dynamic pipe model and electro-dynamically-relevant solenoid valve model are included in the present version of the simulation software, such models had to be elaborated by the authors. The simulation studies reveal that the self-developed gas dynamic pipe model resolves properly the wave effects and flow fluctuations expected from a realistic pneumatic pipe performing high velocity flow. The simulation must accurately resolve such phenomena if the computational study aims to provide an aid to the design of a proper pressure control loop. It has been concluded that a gas dynamic pipe model, covering reliably the physically possible entire Mach number range, is essential in simulation of pneumatic systems.
LA  - English
DB  - MTMT
ER  - 

TY  - CHAP
AU  - Stépán, Gábor
ED  - Moon, FC
TI  - Delay-differential equation models for machine tool chatter
T2  - Dynamics and Chaos in Manufacturing Processes
PB  - John Wiley & Sons
CY  - New York, New York
SN  - 0471152935
PY  - 1998
SP  - 165
EP  - 192
PG  - 28
UR  - https://m2.mtmt.hu/api/publication/1002656
ID  - 1002656
LA  - English
DB  - MTMT
ER  -