Real Time Simulation of Large Rotational Deformation

Authors: Min Gyu Choi and Hyeong-Seok Ko

Presented by Yin Yang

Infinitesimal deformation

Infinitesimal deformation

Infinitesimal deformation

Finite element model

Here

Modal displacement

Modal rotation

We call the modal rotation matrix.Ψ

Integration of rotational parts In case of large deformation

A concept of local coordinate is employed

Modal analysis in local coordinate

Modal analysis in local coordinate The decoupled ODEs can be solved numerically

using semi-implicit integration:

Constraint Position constraint Orientation constraint

Position constraint Let λ be the number of constrained points

Forces do not have to be applied on the constrained points

Orientation constraint Similar to position constraint

Some results

Some results

Thank you and Question?