A key challenge of deformable simulation is to satisfy the conflicting requirements of real-time interactivity and physical realism. In this paper, we present the mass–spring-based force propagation model (FPM) in which the simulation speed is tunable to maintain a balance between the two criteria. Deformation is modeled as a result of force propagation among the mass points in localized region...

A number of studies and researches have been conducted on Virtual Surgery Planning. More specifically, topics on interactive virtual surgery using haptic device have been discussed in [1][2] and so on. Due to the nature of high demand in physical accuracy, many researchers adapted Finite Element Method(FEM) for the simulation. In this paper, I propose simplified massspring model for the interac...

This research investigates a pneumatic suspension system containing an air spring, air flow valve, and an accumulator, where the spring and damping functions are combined into one package. The spring and accumulator provide the spring characteristics, and the computer controlled adjustable valve provides the damping characteristics by automatically adjusting the air flow between the air spring ...

Spring Simulation Multi-Conference 2016 April 3-6, Pasadena, CA, USA c ©2016 Society for Modeling & Simulation International (SCS) ABSTRACT Query-driven analytics on scientific datasets is one of fundamental approaches for scientific discoveries. Existing studies have explored query-driven analytics on uniform resolution meshes. However, querying on adaptive mesh refinement (AMR) data has not b...

The GPU has proven to be a powerful processor to compute spring-mass based surgical simulations. It has not previously been shown however, how to effectively implement haptic interaction with a simulation running entirely on the GPU. This paper describes a method to calculate haptic feedback with limited performance cost. It allows easy balancing of the GPU workload between calculations of simu...

In this article a practical mass-spring system was developed to simulate the draping of woven and knitted fabrics. The material properties important to fabric drape, including aerial density, tensile, shear, and bending properties were measured using the Kawabata Evaluation System and the experimental data were incorporated into the mass-spring model to simulate the dynamic draping behavior of ...

This paper focuses on flow induced static instabilities occurring in poppet valves. Computational fluid dynamics simulation were performed to gain static characteristics of the poppet valve and to demonstrate the unstable behaviour of the valve. Based on theoretical considerations, a necessary condition for the stable operation is derived. The study indicates that stability can be obtained with...

In this paper we describe a procedure for parameters identification using an algebraic identification method for a continuous time constant linear system. We make a specific application in the determination of the parameters mass-spring-damper system. The method is suitable for simultaneously identifying, both, the spring constant and the damping coefficient. It is found that the proposed metho...

In this paper, a procedural method for the visualization of knitted and woven fabrics is presented. The proposed method is compatible with a mass-spring model and makes use of the regular warp–weft structure of the cloth. The visualization parameters for the loops and threads are easily mapped to the animated mass-spring model. The simulation idea underlying both knitted and woven fabrics is si...