منابع مشابه
Dynamic Effects of the Interference Fit of Motor Rotor on the Stiffness of a High Speed Rotating Shaft
Developing a motor-built-in high speed spindle is an important key technology for domestic precision manufacturing industry. The dynamic analysis of the rotating shaft is the major issue in the analysis for a motor-built-in high speed spindle. One of the major concerns is how the motor rotor is mounted on the shaft, by interference (shrink) fit or else. In this study, dynamical analyses are car...
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In high-speed machining, the maximum stable depth of cut at any spindle rotating frequency depends on the spindle-holder-tool dynamic stiffness as reflected at the tool’s free end. Because this dynamic stiffness can vary with rotating frequency, we have modeled the spindle dynamic response using a finite element-based rotordynamics approach. The spindle shaft is modeled using beam finite elemen...
متن کاملBifurcation and Hunting Phenomena of Rotating Speed in a Flexible Rotor System Caused by Whirling Motion
This paper presents the discussion of experimental results and numerical simulation of nonlinear phenomena in a flexible rotor system under mechanical resonance. The whirling motion of the first flexural mode of the rotor causes the hunting of its rotating speed. Hysteretic jump phenomena exist between the charge and the discharge of the rotation. It is shown that the quasi-periodicity of the w...
متن کاملMultiaxial Fatigue Analysis in a High-speed Microgenerator Rotor Shaft
Fatigue evaluation is one of the most concerning issue in the design of mechanical parts subject to alternative forces. Fatigue life estimation is more complicated when loads act on different axes. This paper shows the stress analysis result of the steel shaft of a high-speed microgenerator rotor with 47750 rpm and 100kW which has been carried out with analytical stress formulation. The shaft i...
متن کاملComputational Study of Rotating Stall in High-Speed Compressor
A computational study of compressor instability based on body force representation of each blade-row of a transonic stage has been implemented for both clean inlet flow and flow with circumferential total pressure inlet distortion. The computational results indicate that many aspects related to compressor instability differ from what was observed in the experiment: steady compressor characteris...
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ژورنال
عنوان ژورنال: The Journal of the Japan Society of Aeronautical Engineering
سال: 1962
ISSN: 1883-5422
DOI: 10.2322/jjsass1953.10.322