Abstract
High power ultrasonic systems are used in industrial applications such as welding and cutting. Common reliability problems, such as noise and component failures, often stem from participation of untuned modes in the driving mode due to nonlinear behaviour. A preliminary theoretical investigation to reduce the system nonlinearities is presented for the case of two Duffing oscillators. Experimental application of the theory to an ultrasonic cutting system demonstrates the validity of manipulating the nonlinear characteristics via ‘Nonlinear Cancellation Coupling’. Further, modal interactions in the form of combination resonances are characterised experimentally.
| Original language | English |
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| Publication status | Published - 16 Sep 2002 |
| Event | Forum Acusticum Sevilla - Seville, Spain Duration: 16 Sep 2002 → 20 Sep 2002 |
Conference
| Conference | Forum Acusticum Sevilla |
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| Country/Territory | Spain |
| City | Seville |
| Period | 16/09/02 → 20/09/02 |
Keywords
- ultrasonic systems
- nonlinear behaviour
- Duffing oscillators