### Author Topic: force calculation in 4 legged walking robot  (Read 1870 times)

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#### gadis

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##### force calculation in 4 legged walking robot
« on: January 20, 2011, 07:39:31 AM »
hi.i would like to ask how to calculate the force in 4 legged walking robot.
any example?i working on 4 legged robot.but my lecturer ask ,ask me to do calculation.any idea?

#### waltr

• Supreme Robot
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##### Re: force calculation in 4 legged walking robot
« Reply #1 on: January 20, 2011, 08:31:14 AM »
Your Physics text book, Google and Wiki all have the needed information.

Key words for searches:
Force Diagram
moment arm
torque

You will need to start with a diagram of a leg then draw in all of the Forces and Moment arms before calculations.

#### gadis

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##### Re: force calculation in 4 legged walking robot
« Reply #2 on: January 20, 2011, 09:08:23 AM »
ok thnks ya!

#### Mike136

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##### Re: force calculation in 4 legged walking robot
« Reply #3 on: January 25, 2011, 08:02:53 AM »
As you may have found out, a four-legged walking robot is statically indeterminate. In order to find the force on all four legs at any particular time, you will need to use knowledge of Mechanics of Materials. You can analyze the forces on the robot while one leg is up in the air, no problem, but with all four on the ground, there is no way to solve it statically.

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