Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: karmax on March 20, 2008, 10:54:43 AM

Title: torque to climb stairs
Post by: karmax on March 20, 2008, 10:54:43 AM

hw to calculate torque required by motors to climb stairs........???
shud i use rmf calc nd in d angle column put d angle of d stairs or shud i calc torque by applying forces for each stair????????

awaiting a quick reply...........

Title: Re: torque to climb stairs
Post by: AndrewM on March 20, 2008, 11:21:22 AM

Will the robot be climbing all of the stairs at the same time, or will it be ascending one step at a time?  Answer that and you have your answer to which force measurement to use.

Title: Re: @ andrew
Post by: karmax on March 21, 2008, 03:20:08 AM

the robot has to climb around 10 stairs in one go...............first the robot will climb the stairs one by one and wen its whole body is on stairs den ofcrse it will climb all atirs.........the weight of my robot will be around 10 kgs without motors..............

Title: Re: torque to climb stairs
Post by: AndrewM on March 21, 2008, 07:44:53 AM

Sounds like you will have to calculate both sets of torque then and use the higher requirements for your motors.

Title: Re: torque to climb stairs
Post by: Admin on March 23, 2008, 03:43:45 PM

The RMF calculation will give you the minimum torque you require . . . but calculating for worst case is very difficult because it includes dynamic torque.

Just calculate for RMF, then add like ~30% more.