Abstract
The ACROSS (Accurately Controlled Routinely Operated Signal System) is used to detect subtle changes in the physical state of Earth's structure. The signal is sinusoidal elastic waves generated by the rotation of a rotor with eccentric mass set in ACROSS transmitters. In currently working transmitters, since the rotor is supported by rolling contact bearings, bearing losses are so large that the cooling, lubrication management and bearing life become serious problems. To solve these problems, hydrostatic asymmetric journal gas bearings have been proposed to support the eccentric mass rotors. This paper describes the experimental investigation of rotational characteristics of proposed hydrostatic asymmetric journal gas bearings. It is verified that the rotor amplitude in the journal bearings can be zero at a certain rotational frequency by using trial test rig. In order to decrease the gas consumption and increase more safely operation, test of rotational frequency modulation using electro-pneumatic pressure regulator was carried out. In fixed supply pressure condition, rotor amplitude largely changes in accordance with change of rotational frequency. In controlled supply pressure condition, the rotor amplitude decrease under the operation and the gas consumption also largely decreased.
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 callMore From: Journal of Advanced Mechanical Design, Systems, and Manufacturing
Disclaimer: 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.
