Simulation of Skeletal Muscles in Real-Time with Parallel Computing in GPU

Applied Sciences

Moisés Alencastre-Miranda¹  Octavio Navarro-Hinojosa² 

[1] Department of Mechanical Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA;Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av Carlos Lazo 100, Santa Fe, La Loma, Alvaro Obregon, 01389 Ciudad de Mexico, Mexico;

关键词: musculoskeletal simulation;    fluid simulation;    gpgpu;   

DOI  :  10.3390/app10062099

来源: DOAJ

【 摘 要 】

Modeling and simulation of the skeletal muscles are usually solved using the Finite Element method (FEM) which, although accurate, commonly needs a complex mesh and the solution is not processed in real-time. In this work, a meshfree model that simulates skeletal muscles considering their functioning and control based on electrical activity, their structure based on biological tissue, and that computes in real-time, is presented. Meshfree methods were used because they are able to surpass most of the limitations that are present in mesh-based methods. The muscular belly was modelled as a particle-based viscoelastic fluid, which is controlled using the monodomain model and shape matching. The smoothed particle hydrodynamics (SPH) method was used to solve both the fluid dynamics and the electrophysiological model. To analyze the accuracy of the method, a similar model was implemented with FEM. Both FEM and SPH methods provide similar solutions of the models in terms of pressure and displacement, with an error of around 0.09, with up to a 10% difference between them. Through the use of General-purpose computing on graphics processing units (GPGPU), real-time simulations that offer a viable alternative to mesh-based models for interactive biological tissue simulations was achieved.

【 授权许可】

Unknown