Own Vibrations of Bodies Interacting with Unlimited Deformable Environment

Molecular motors interacting with their own tracks.

Dynamics of molecular motors that move along linear lattices and interact with them via reversible destruction of specific lattice bonds is investigated theoretically by analyzing exactly solvable discrete-state "burnt-bridge" models. Molecular motors are viewed as diffusing particles that can asymmetrically break or rebuild periodically distributed weak links when passing over them. Our explic...

Animation of Interacting Deformable Interfaces

This paper describes a Stokesian (slow viscous) flow simulation for producing accurate animations of interacting deformable interfaces separating two phases with different viscosities. This models several phenomena in their nativity, such as air bubbles rising in water, liquid metal drops coalescing, cell membranes interacting, soft docking of flexible molecules, etc. Starting from any initial ...

Do we own our bodies?

On Self-excited Vibrations Due to Sliding Friction in Systems of Deformable Bodies – General Formulation and Influence of Contact Properties –

This contribution presents a generalized approach to friction induced vibrations in systems of moving continua. To this end, Hamilton’s Principle is used to state a weak formulation of the system dynamics without using specific structural models, like beams or plates for instance. The normal contact is enforced by a penalty formulation, which motivates the use of a constitutive contact model ba...

Volume Conserving Simulation of Deformable Bodies

We present a new method for simulating volume conserving deformable bodies using an impulse-based approach. In order to simulate a deformable body a tetrahedral model is generated from an arbitrary triangle mesh. All resulting tetrahedrons are assigned to volume constraints which ensure the conservation of the total volume. For the simulation of such a constraint impulses are computed and appli...