Difference between revisions of "Rotational Stiffness"
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In the linear case, the applied force (F) is proportional to the linear displacement (x) of one end of the "spring" with respect to the other (i.e. the amount of stretch or compression of the spring). |
In the linear case, the applied force (F) is proportional to the linear displacement (x) of one end of the "spring" with respect to the other (i.e. the amount of stretch or compression of the spring). |
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F = k * x |
F = k * x |
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In the rotational case, the applied torque (T) is proportional to the angular displacement (theta) of one side/end with respect to the other. |
In the rotational case, the applied torque (T) is proportional to the angular displacement (theta) of one side/end with respect to the other. |
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T = k * theta |
T = k * theta |
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In both cases, the relationship can be non-linear, however a linear relationship is easier to work with. |
In both cases, the relationship can be non-linear, however a linear relationship is easier to work with. |
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Revision as of 18:30, 20 March 2008
Stiffness
Stiffness (k) is the relationship between an applied force and the displacement the force produces. This relationship can be defined for two common cases:
In the linear case, the applied force (F) is proportional to the linear displacement (x) of one end of the "spring" with respect to the other (i.e. the amount of stretch or compression of the spring).
F = k * x
In the rotational case, the applied torque (T) is proportional to the angular displacement (theta) of one side/end with respect to the other.
T = k * theta
In both cases, the relationship can be non-linear, however a linear relationship is easier to work with.
Linear Spring
Torque/Moment
Vector Decomposition
Programmable Stiffness Joint
Static Insertion
Rotating Insertion
Spring Extension
Torque
Rotational Stiffness
