Optimal design of hydraulic support.pdf

Struct Multidisc Optim 20, 76–82  Springer-Verlag 2000
Optimal design of hydraulic support
M. Oblak, B. Harl and B. Butinar
Abstract This paper describes a procedure for optimal mechanisms FEDG and AEDB as shown in Fig. 2. The
determination of two groups of parameters of a hydraulic mechanism AEDB defines the path of coupler point C
support employed in the mining industry. The procedure and the mechanism FEDG is used to drive the support by
is based on mathematical programming methods. In the a hydraulic actuator.
first step, the optimal values of some parameters of the
leading four-bar mechanism are found in order to ensure
the desired motion of the support with minimal transver-
sal displacements. In the second step, maximal tolerances
of the optimal values of the leading four-bar mechanism
are calculated, so the response of hydraulic support will
be satisfying.
Key words four-bar mechanism, optimal design, math-
ematical programming, approximation method, tolerance
1
Introduction
The designer aims to find the best design for the mechan-
ical system considered. Part of this effort is the optimal
choice of some selected parameters of a system. Methods
of mathematical programming can be used, if a suitable
mathematical model of the system is made. Of course, it
depends on the type of the system. With this formulation,
puter support is assured to look for op