INSEAN Uses Simulation to Study Structural Vibration
Francesca Magionesi
INSEAN
Italy
There has been a recent move towards utilizing bulbous bows on ships to house different types of sonar systems, but it is not definite how much structural vibration might interfere with the functioning of a transducer array inside the sonar dome. INSEAN, the National Institute for Studies and Experiments of Naval Architecture in Italy, needed a way to simulate what is happening when the turbulent boundary layer interacts with the bulbous bow in order to determine how much self-noise this creates.
They first created a small-scale model to capture the turbulent boundary layer excitation and that gave them a full-scale fluid load expression. They then created a full-scale model within COMSOL Multiphysics, taking the complexity of the composite material used for the bulbous bow and the turbulent boundary layer load into account. LiveLink™ for Pro/ENGINEER® enabled the team to bring CAD data for the different parts of the bulbous bow into COMSOL Multiphysics.
Suggested Stories
National Grid Models Underground Cable Routes
U.K. National Grid bears responsibility for maintaining the high-voltage transmission network in the U.K. Determining ...
Giving Furniture Testing a Leg Up
Chairs must meet quality standards, which requires lengthy and costly testing. To reduce the burden on manufacturers, ...
Understanding the Origin of Uncertainty in Thermometer Calibration
Thermometers have widespread application and like any measurement device, they must be calibrated. Many do this with ...
Thermal Characterization of an Electronic Device with a Custom App
BE CAE & Test, a COMSOL Certified Consultant, created a thermal model of a surface-mount device for a client and ...
