Researches Regarding the Modeling Using the Finite Method Analisys of an Ultraacoustic System Used at Ultrasound Welding of Automotive Signal Lamps

摘要

The problems that are raised for an ultra acoustic system they can be solved by using an analytic modeling or finite element modeling, because the analytic method is extremely complicated and less more efficient in the project state it was applied the modeling using the method of finite element which has the following advantages: it allows the rapid determination of the vibration mode and the behavior of the system at different frequencies, it allows the ready-made determination of the tension and deformation state in each section of the system, determines the vibration diagram of the amplitude velocity of the particle in each point of the system which vibrates even in his active part, fa the work there are presented the results obtained by modeling with finite element method of the ultra acoustic system, movement amplifier - bell concentrator used at the ultrasound welding of the signal auto lights.