Vol.9, No 1, 2010 pp. 161 - 166
UDC
621.22 621.3.029 004.4 MATLAB
DETERMINATION OF FREQUENCY CHARACTERISTICS OF
A PROPORTIONAL PRESSURE VALVE BY STEP RESPONSE
Miroslav Novaković1, Stanimir Čajetinac2,
Radovan Petrović2, Slobodan Aleksandrov3
1FLUVIUS, Vukasovićeva 27, Beograd,
2Engineering College, Trstenik, SERBIA,
3Techical School Trstenik, Trstenik, SERBIA
E-mail: fluvius.bg@gmail.com, caja.dublje@gmail.com, radovanfvk@yahoo.com, aleksandrovs@yahoo.com
Abstract.
The paper presents a method for determining frequent characteristics of proportional hydraulic pressure valve by experimental and calculating method. The method is based on measuring the response of the system driven by step function at the input and it is applied to electro-hydraulic pressure control valve. The measurement has been done by the system for data acquisition based on a PC, whereas the calculation and obtainment of frequent characteristics have been done by MATLAB.
Key Words:
proportional hydraulic pressure valve, frequency characteristics, step input, MATLAB.
ODREĐIVANJE FREKVENTNIH KARAKTERISTIKA PRPORCIONALNOG VENTILA PRITISKA KORIŠĆENJEM ODSKOČNOG ODZIVA
U radu je prikazan jedan postupak za određivanje frekventnih karakteristika proporcionalnog hidrauličkog ventila pritiska primenom eksperimentalno računskog postupka. Postupak se zasniva na merenju odziva sistema pobuđenog odskočnom funkcijom na ulazu i primenjen je na elektrohidraulički ventil za regulaciju pritiska. Merenje je obavljeno sistemom za akviziciju podataka baziranom na PC računaru, a računski deo i dobijanje frekventnih karakteristitka urađeno je programom MATLAB.
Ključne reči:
Proporcionalni hidraulički ventil pritiska, frekventne karakteristike, step pobuda, MATLAB
