Introduction
Results
The main goal of this project is to develop
a parametric dynamic simulation model of
a
digitally
variable
displacement
pump/motor and its basic control with a
newly simulation software HOPSAN NG
developed by flumes, which depends on
C++ coding and python scripting
language. Transmission line method
(TLM) is a very suitable method for
developing new component in HOPSAN.
Flow in the cylinder against high pressure valve
opening /closing
Complete pump model
TLM equations
T = C1+ Zx1ω
F = C2 + Zx2 v
1
1
T = Fy
T-T1 = (Js+B) ω
Angular Velocity
Flow at HP outlet valve for piston
Conclusions
A simulation model of a pump
with fixed number of pistons has
been developed in Hopsan NG
Project Group:
Abhilash K, Sanjib C, Imran A, Gopi
and Shankar
Supervisor:
Kim Heybroek, Karl Pettersson
Digital Hydraulics Group
Division of Fluid and Mechatronic Systems
December 2011