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Ryan P. Russell

2 accepted papers

2022

Analytical Second-Order Partial Derivatives of Rigid-Body Inverse Dynamics

IROS 2022poster

Optimization-based robot control strategies often rely on first-order dynamics approximation methods, as in iLQR. Using second-order approximations of the dynamics is expensive due to the costly second-order partial derivatives of the dynamics with respect to the state and control. Current approache…

Cited by 6SourcecodeScholar
2022

Efficient Analytical Derivatives of Rigid-Body Dynamics Using Spatial Vector Algebra

RA-L 2022

An essential need for many model-based robot control algorithms is the ability to quickly and accurately compute partial derivatives of the equations of motion. State of the art approaches often use analytical methods based on the chain rule applied to existing dynamics algorithms. Although these me

Cited by 30SourcecodeScholar