...Peng Zhang; Zhuo Wang; Dan He; Danhong Huang; Haobo Li; Lin Du; Xiaofeng Sun The non-synchronous blade vibration induced by a rotating aerodynamic disturbance is encountered for the fan of a turbofan engine working at 65% speedline. To analyze the unsteady characteristics, two methods based...

... to the commonly used control systems such as the Variable Geometry Turbine (VGT). This advantage makes the MC applicable for a wider range of applications which is difficult to be covered with the common control systems. Replacing the traditional spiral casing with the MC affects the blade's vibration behavior...

... of these mode localization effects depending on various parameters of a real high pressure compressor blisk rotor. The investigations show that blade vibration modes with lower interblade coupling, e.g., torsion modes or modes with high numbers of nodal diameter lines, have a significantly higher sensitivity...

... 04 March 2002 27 08 2003 gas turbines optimisation vibrations modelling engines Mistuning Blade Vibration Maximum Amplitude Optimization Mode Shape The blades of any given disk do not exhibit geometrical and/or material properties that are perfectly identical...

... random mistuning will be close to that predicted by the theory. distortion structural engineering tuning vibrations Mistuning Blade Vibration Maximum Response Robust Forced Response Mistuning of bladed disks contributes to gas turbine high cycle fatigue by significantly...

.... Review Chair: E. Benvenuti. 03 June 2002 04 March 2002 23 01 2003 gas turbines rotational flow vibrations sensors optimisation strain gauges Sensor Placement Strain Measurement Blade Vibration Optimization Strain Gage Measuring vibrations of turbomachine...

... gas turbines flow control modelling vibrations Mistuning Blade Vibration Reduced Order Model Forced Response Modeling The resonant amplitudes of turbine blades are generally very sensitive to small variations in the blade properties. Therefore, the small blade variations...