Joe_Reliable
July 9th, 2010, 11:45 AM
Hi there, I'm new to the forum, new to ALT, and new to reliability in general, but have gone through the ReliaSoft intro courses which were incredibly helpful, and have been studying and practicing many reliability analysis techniques for about a year now.
I am trying to perform very small sample tests on both electric brushless motors and servos, and would like to consider accelerating the test through increasing the stress on the motors and servos. Both components are comparable to what you might find in hobby airplanes, boats, or helicopters. Because of my company's limited resources, it would be unreasonable to run several different tests at varying stress levels, then fit a curve to extrapolate back to actual use conditions; the number of specimens would be double or triple our budget!
My real question is: Where can I find resources on already known acceleration factors/relationships? I assume that these components are fairly well tested, understood, and documented, but I am having a great deal of trouble finding information on known acceleration factors. For instance, what is the acceleration factor on a motor if I double its operation speed or power output? What is the acceleration factor if I double the spring tension or actuation frequency on the servos? I realize that people here may not be experts on servos and motors, but I'm finding if hard to locate generalized information on these components. Thanks for any input!
(To give you guys a hint, the components of interest in the motor are windings, magnets, and bearings, and the components of interest in the servos are motors, metallic gear drivetrains, and potentiometers).
I am trying to perform very small sample tests on both electric brushless motors and servos, and would like to consider accelerating the test through increasing the stress on the motors and servos. Both components are comparable to what you might find in hobby airplanes, boats, or helicopters. Because of my company's limited resources, it would be unreasonable to run several different tests at varying stress levels, then fit a curve to extrapolate back to actual use conditions; the number of specimens would be double or triple our budget!
My real question is: Where can I find resources on already known acceleration factors/relationships? I assume that these components are fairly well tested, understood, and documented, but I am having a great deal of trouble finding information on known acceleration factors. For instance, what is the acceleration factor on a motor if I double its operation speed or power output? What is the acceleration factor if I double the spring tension or actuation frequency on the servos? I realize that people here may not be experts on servos and motors, but I'm finding if hard to locate generalized information on these components. Thanks for any input!
(To give you guys a hint, the components of interest in the motor are windings, magnets, and bearings, and the components of interest in the servos are motors, metallic gear drivetrains, and potentiometers).