Modeling and design of air vane motors for minimal torque ripples
Journal
IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM
Start Page
1275
End Page
1280
ISSN
21596247
21596255
ISBN (of the container)
9781479957361
9781467325752
9781424412648
9781424480319
9781467391078
1424412641
9781509020652
9781424428533
0780377591
9798350355369
Date Issued
2010
Author(s)
Cheng, Chengwei
Abstract
This paper presents the analysis and design of a novel air vane motor. Air motors produce very high specific power. They require compressed air rather than electricity; thus avoid sparks and can be used in demanding environments. Same as other types of rotary machines, air vane motors exhibit torque fluctuations. The varying torque curve is a result of unmatched torques generated by the vanes in one revolution. Torque fluctuations produce dynamic speed ripples that further introduce undesirable vibration. Rather than using auxiliary flywheels to smoothen the fluctuation, we propose a new stator configuration that can help produce a nearly constant output torque. The stator adopts asymmetric inlet/outlet positions and a noncircular inner profile. Through numerical optimizations of the noncircular profile, the torque fluctuation and speed ripples are greatly reduced, when compared with traditional air vane motors with circular stator profiles. Meanwhile, the air vane motors can be more efficient by setting a reasonably higher expansion ratio. We expect that the optimized noncircular stator profile can be applied to air vane motors of various sizes to eliminate rotating vibrations.
Event(s)
2010 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2010
Subjects
Constant Torque
Stator Profile Design
Torque Ripple
Vane-type Air Motor
Air Motors
Analysis And Design
Constant Torque
Dynamic Speed
Expansion Ratio
Non-circular
Numerical Optimizations
Output Torque
Rotary Machine
Specific Power
Stator Configuration
Torque Curves
Torque Fluctuation
Torque Ripple
Torque Ripples
Vane-type Air Motor
Asymptotic Analysis
Cold Storage
Compressed Air
Design
Intelligent Mechatronics
Mechatronics
Optimization
Stators
Torque
SDGs
Description
2010 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2010. Montreal, QC. conference code:83816
Type
conference paper