Finite Element Analysis
Introduction
ES-Consult has experience in analysis of many types of structural
members and machine components concerning strength, lifetime, and properties
in service.
ES-Consult has sophisticated Finite Element software at its disposal.
It enables the company to carry out detailed analyses of complex structures
and structural elements. A Finite Element analysis may consist of an investigation
of structural parts with respect to rupture, deformations, vibrations or
fatigue failure caused by repeated actions.
In cases where Finite Element analysis has appeared to be insufficient,
ES-Consult has often succeeded in developing efficient calculation methods
for the solution of the actual problems.
Special Assignments
For the company IN-MIX Ltd., ES-Consult has carried out an analysis of an
agitator for a coal silo in a power plant.
The analysis included a dimensioning of the agitator with respect to
rupture and fatigue and also a determination of the deformations and the
lowest natural frequency. The analysis involved a modelling of various
complex three-dimensional structural members.
The project of the Øresund Bridge between Denmark and Sweden
had to include an investigation of the consequences for the bridge of ship
collisions due to the heavy ship traffic in the sound. The purpose of the
analysis was to optimize the bridge substructure so that a possible ship
impact would not have catastrophic consequences for the bridge and for
the traffic on the bridge.
The investigation has been carried out by making a Finite Element model
of the entire Øresund bridge. This model made it possible to make a realistic
assessment of the vibration level of the bridge as well as a determination
of the permanent deformations of the structure after a ship collision.
Other Perspectives
The structures and the loads on them may be so complex, that calculations
alone are not sufficient to assess the response of the structure. In such
cases the design must be verified after the construction by monitoring
and observing the properties of the structure.
ES-Consult has gained experience both in the planning and management
of such measurements and in the subsequent interpretation of the results
of the measurements. Here it is advantageous to organize the measurements
in data bases with the aim of comparing the results with the calculations.
As a result, a greater knowledge about the properties of the construction
can be gained.
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