Abstract
With the pseudo-excitation method, the random response of a cantilever double-disc rotor system under the filtered Gaussian white noise earthquake ground accelerated random excitations, is analyzed by computer numerical simulation. The results show that the random response is relatively strong during an earthquake of the horizontal direction while the cantilever disk vibration is the strongest. The inherent frequency of the site soil has a great effect on the random response in the horizontal direction, while the system frequency characteristics have a great effect on the random response in the vertical direction. The rotor imbalance random excitation intensity does not change the peak frequency of the response spectrum. However, the system random vibration response is large when the excitation intensity is in a high level state. It has a great impact on the low and high frequency of non-cantilever disc, the low frequency of the cantilever disc, the high-frequency of non-cantilever bearing vertical vibration and the high-frequency of cantilever bearing the intensity around the high-frequency random response.
Highlights
The development of high performance and increased efficiency rotating machines has prompted the researchers worldwide to review and research rotating machines in a new light [1,2,3,4,5,6,7]
With the pseudo-excitation method, the cantilever double-disc rotor system under the filtered Gaussian white noise earthquake ground acceleration random excitations is analyzed by computational numerical simulation
Analysis shows that random response of rotor system is relatively strong during an earthquake of the horizontal direction, so inertial force instruction vector can be derived as
Summary
The development of high performance and increased efficiency rotating machines has prompted the researchers worldwide to review and research rotating machines in a new light [1,2,3,4,5,6,7]. The pseudo-excitation method which is proposed by Professor Lin Jiahao is an effective method to analyze the linear random vibration system [10, 11]. This method transforms the stationary random excitation into steady state harmonic excitation. With the pseudo-excitation method, the cantilever double-disc rotor system under the filtered Gaussian white noise earthquake ground acceleration random excitations is analyzed by computational numerical simulation. It provides the basis for rational selection and random control of the parameters of the rotor system
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
