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mechmotum / ollie-optimization

Optimal control and parameter optimization for a maximal height ollie problem
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Clarify nose-tail symmetry #44

Closed jtheinen closed 10 months ago

jtheinen commented 11 months ago

reviewer 2:

Does “nose-tail symmetry” mean the symmetry around the center of gravity along the longitudinal direction? Probably, I misunderstood. Fig.3 does not look like the symmetry around the center of gravity along the longitudinal direction.

moorepants commented 11 months ago

maybe "geometric symmetry" is helpful? I think your board will always have the mass center a the geometric center right? you could use "geometrically and inertially symmetric" as clarifiers.

moorepants commented 11 months ago

Fig.3 does not look like the symmetry around the center of gravity along the longitudinal direction.

I think that is just an illusion. The mass center for the board $m_s$ is at the longitudinal geometric center in the figure. I think we can just say that in the rebuttal.

moorepants commented 11 months ago

I changed it to "The board was modelled as a simplified popsicle stick skateboard where we assume the board is geometrically symmetric, i.e. the front nose and truck is a mirror of the back tail and truck, and there is no deck concavity." What do you think?