For Mediso Ltd. we made several major projects and for three years we
have provided them engineering consultant on site activity.
One
of these major projects was a device re-design. The task started with
the new industrial design of the product. The different versions of the
design sketches were made with Pro/E ISDX surface-modelling module.
After evaluating the design versions, the whole body structure of the
device was redesigned. The new design was made according to strict
American safety regulations and special health standards. The new body
design allowed only canteliver support which had to be verified against
failure and unexpected deflection with a finite element analysis (FEA).
The design of this product won the 2006 Hungarian Industrial Design
Award.
Another project C3D Ltd made for Mediso Ltd was an
overall structural strength calculation of a universal gamma camera. The
task was to verify the main gantry and the functional parts of the
redesigned camera. The calculations were done according to EN 1993-1
(Eurocode3) and EN 60601 standards. The strength calculation was
partially done by final element analysis and the rest was provided with
analytical calculations.
C3D Ltd. also made the fatigue
calculation of the human CT welded main gantry and the rotor mounting
with finite element analysis. The gantry and the mounting parts have
fatigue load caused by the rotor dynamical imbalance. The rotor weighs
700 kg, it rotates with 120rpm and its outer diameter is close to 1,6m.
The calculation contained the self frequency extraction, the dynamic
load and the stress.
The usage of Pro/MECHANICA was essential
for the FEA tests. The collaboration with Mediso was supported by
Pro/INTRALINK.
