10th International Conference on Vibrations in Rotating by Institution of Mechanical Engineers

By Institution of Mechanical Engineers

This booklet offers the papers from the tenth foreign convention on Vibrations in Rotating equipment. This convention, first held in 1976, has outlined and redefined the state of the art within the many features of vibration encountered in rotating equipment. amazing via a good mixture of commercial and educational participation completed, those papers current the newest tools of theoretical, experimental and computational rotordynamics, along the present problems with predicament within the extra improvement of rotating machines. subject matters are aimed toward propelling ahead the criteria of excellence within the layout and operation of rotating machines.

  • Presents most modern equipment of theoretical, experimental and computational rotordynamics
  • Covers present problems with obstacle within the additional improvement of rotating machines

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Extra resources for 10th International Conference on Vibrations in Rotating Machinery: 11-13 September 2012, Imeche London, UK

Example text

Potter, "A new order tracking method for rotating machinery," Sound and Vibration, vol. 24, pp. 30-34, 1990. [37] K. Fyfe and E. Munck, "Analysis of computed order tracking," Mechanical Systems and Signal Processing, vol. 11, pp. 187-205, 1997. [38] F. Gustafsson, Adaptive filtering and change detection vol. 5: Wiley Online Library, 2000. [39] M. Brandstein and D. Ward, Microphone arrays: signal processing techniques and applications: Springer Verlag, 2001. [40] B. 1. Fundamentals," Proceedings of the Ieee, vol.

Frequency response of the low pressure shaft measured in a free-free state (left) and simulated Campbell-Diagram of the mounted low pressure shaft (right) In order to validate a simulation model an experimental modal analysis has been performed. The assembled shafts have been hung up on elastic ropes representing a free-free condition. Fig. 3 (left) shows a result of the measurement illustrating a frequency response to a hammer excitation of the low pressure shaft. The marked peaks match the bending resonances located by 25 Hz, 70 Hz and 183 Hz.

Therefore, the authors pass the use of displacement measuring for the rigid prototype. 54 5 CONCLUSION The paper at hand presents some of the most important systems of a test rig developed at the Berlin Institute of Technology. The test rigs aims at the experimental simulation of engine vibrations due to sudden mass loss (blade loss events). Focusing on smaller core blade off events the test rig is believed to be unique as it almost reaches a one to one scale. The information given covers some important design issues as well as supporting numerical and experimental investigations.

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