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DTSTAMP:20230103T035309Z
LOCATION:Room 324\, Level 3\, West Wing
DTSTART;TZID=Asia/Seoul:20221207T170000
DTEND;TZID=Asia/Seoul:20221207T183000
UID:siggraphasia_SIGGRAPH Asia 2022_sess175_papers_369@linklings.com
SUMMARY:Differentiable Simulation of Inertial Musculotendons
DESCRIPTION:Technical Papers, TOG\n\nDifferentiable Simulation of Inertial
  Musculotendons\n\nWang, Verheul, Yeo, Kalantari, Sueda\n\nWe propose a si
 mple and practical approach for incorporating the effects of muscle inerti
 a, which has been ignored by previous musculoskeletal simulators in both g
 raphics and biomechanics. We approximate the inertia of the muscle by assu
 ming that muscle mass is distributed along the centerline of the muscle. W
 e express the motion of the musculotendons in terms of the motion of the s
 keletal joints using a chain of Jacobians, so that at the top level, only 
 the reduced degrees of freedom of the skeleton are used to completely driv
 e both bones and musculotendons. Our approach can handle all commonly used
  musculotendon path types, including those with multiple path points and w
 rapping surfaces. For muscle paths involving wrapping surfaces, we use neu
 ral networks to model the Jacobians, trained using existing wrapping surfa
 ce libraries, which allows us to effectively handle the Jacobian discontin
 uities that occur when musculotendon paths collide with wrapping surfaces.
  We demonstrate support for higher-order time integrators, complex joints,
  inverse dynamics, Hill-type muscle models, and differentiability. In the 
 limit, as the muscle mass is reduced to zero, our approach gracefully degr
 ades to traditional simulators without support for muscle inertia. Finally
 , it is possible to mix and match inertial and non-inertial musculotendons
 , depending on the application.\n\nRegistration Category: FULL ACCESS, ON-
 DEMAND ACCESS\n\nLanguage: ENGLISH\n\nFormat: IN-PERSON, ON-DEMAND
URL:https://sa2022.siggraph.org/en/full-program/?id=papers_369&sess=sess17
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