✦ LIBER ✦

A study into the vibration behaviour of power ultrasonic devices for bone surgery

✍ Scribed by Andrew Mathieson; Andrea Cardoni

Publisher: Elsevier
Year: 2010
Tongue: English
Weight: 547 KB
Volume: 3
Category: Article
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2010.01.098

No coin nor oath required. For personal study only.

✦ Synopsis

Nonlinear behaviour is known to exist in power ultrasonic systems. Multimodal responses, frequency modulations, hysteresis effects, bifurcations and chaos are amongst the nonlinear phenomena detected in tuned devices driven at high power. This paper investigates the effect of a cutting insert on the inherent nonlinear vibration behaviour of an ultrasonic transducer for bone surgery. The mode shape and operating mode of the tuned assembly have been simulated using finite element analysis (FEA) and validated by experimental modal analysis (EMA). The effects of temperature and power on the system nonlinear response characteristics have also been measured using a laser vibrometer (LDV) and a thermal imaging camera. Hints for the design of power ultrasonic devices with controlled vibration behaviour ensue from the work.

📜 SIMILAR VOLUMES

A preliminary investigation into optimis

A preliminary investigation into optimising the response of vibrating systems used for ultrasonic cutting

✍ F.C.N. Lim; M.P. Cartmell; A. Cardoni; M. Lucas 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 610 KB

A new analytical method for analysis and

A new analytical method for analysis and design of Class E power amplifiers taking into account the switching device on resistance

✍ Chen, Wen; Floberg, Henrik; Qiu, Shui-Sheng 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 157 KB 👁 2 views

The new analytical method presented in this paper extends the principle of the equivalent small parameter method (ESP, an improved perturbation technique) to analyse and design Class E power ampli"ers. Using this method the analytical expression for the output voltage (or current), containing the fu

A case study for the effect of a flow im

A case study for the effect of a flow improvement device (a partial wake equalizing duct) on ship powering characteristics

✍ Emin Korkut 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 338 KB

A case study for the energy saving in the powering characteristics of a river going general cargo ship has been carried out. Two different hull forms were generated from the original hull form of the vessel to optimise the stern flow of the vessel. A possible energy saving concept, such as partial w

A study of hand vibration on chipping an

A study of hand vibration on chipping and grinding operators, part III: Power levels into the hands of operators of pneumatic tools used in chipping and grinding operations

✍ D.D. Reynolds; R. Basel; D.E. Wasserman; W. Taylor 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 676 KB

A 2D simulation study on the d.c. and tr

A 2D simulation study on the d.c. and transient behaviour of a SiGe-base heterojunction bipolar device with an extended germanium profile into the n-epi region with application to an ECL buffer

✍ B.Y. Chen; H.C. Wu; J.B. Kuo 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 466 KB