ASPECTS OF TOTAL QUALITY MANAGEMENT APPLIED IN ...

F10 F5, F9 1
F11 F8, F10 10
F12 F11 1
Total duration 55
Annals of the University “Constantin Brâncuşi”of Tg-Jiu, No. 1/2008, Volume 2,
ISSN: 1842-4856
Picture 1.1. Technological process of 12 phases
The following procedure has been adopted in the design of the net:
Step 1: in column 1, on the left of the diagram, all phases without predecessors are represented.
Step m (we start at m=2; this step is repeated until all phases appear in the net; for each execution
of the step, m is being increased by 1).
a – in column m, on the right in relation to column m-1, all phases that are not yet in the net and
that they have no predecessor that has already been presented are represented.
b – arches from m-1 column phases up to the following phases in column m. This operation is
being continued, successively considering columns m-2…. instead of column m-1. In order to avoid
redundant arches, no arches from one phase to another will be traced, if from the first to the second
phase can be reached through already existing arches within the network.
What we are looking for is to organize a flux line on which the technological process used as
example can take place. For all the already- mentioned reasons, we wish for the line to be as equal as
possible, which means assuring a minimum value to the N-r product, thus also for the d % .
Before tackling the equilibration problem, we will present a summary of the annotations:
r = line rhythm;
N = number of working posts;
j = phase- indicating parameter;
F j = j number phase;
J = total phase number;
t j = j phase duration;
i = parameter showing the operation taking place in the i- th working post;
p i = i operation duration;
d =flux line idle time;
d % = total idle time, expressed as percentage out of the N ⋅ r .
For unitary syncronization, : r ≥ max pi
For a better understanding of the problem, it is useful to consider the relation between rhythm and
the number of posts. The following hyperbole family is used:
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