An Intuitive Method to Compute the Deformation of Surfaces by Operating Time Varying Stable From

نویسندگان

  • Ippei TAKAUCHI
  • Masatoshi OCHIAI
  • Hiromu SAITO
  • Ryo ASAKURA
  • Motofumi HATTORI
چکیده

This research discusses how to make 3DCG animations of flowers, wings, and cloths etc. which are modeled by continuum surfaces. The Newtonian dynamics equation of the surface deformation is derived from the potential functions ( the energy functions ) of the surfaces based on the variational principle of the continuum mechanics. The Newtonian dynamics equation of the surface deformation is obtained as a feedback control system whose input becomes a time varying stable form of the surface. By changing this stable form appropriately, we can achieve the desired deformation of the surface easily.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Power System Transient Stability Analysis Based on the Development and Evaluation Methods

A novel method to compute the stability region in power system transient stability analysis is presented. This method is based on the set analysis. The key to this method is to construct the Hamilton-Jacobi-Isaacs (HJI) partial differential equation (PDE) of a nonlinear system, using which we can compute the backward reachable set by applying the level set methods. The backward reachable set of...

متن کامل

Efficient feature tracking of time-varying surfaces using multi-scale motion flow propagation

This paper presents a framework for efficient feature tracking of time-varying surfaces. The framework can not only capture the dynamic geometry features on the time-varying surfaces, but also can compute the accurate boundaries of the geometry features. The basic idea of the proposed approach is using the multi-scale motion flow and surface matching information to propagate the feature frame o...

متن کامل

Extension of VIKOR Method to Find an Optimal Layout for Fixture's Supporting Points in Order to Reduce Work Piece Deformation

In automotive industry fixtures have a direct effect on product manufacturing quality, productivity and cost, as a result fixtures, particularly welding fixture, play a crucial role in the auto industry. The fixture is a special tool for holding a work piece in proper position during manufacturing operation, so in the phase of the fixture design process positioning pins and surfaces are used to...

متن کامل

Digital cohomology groups of certain minimal surfaces

In this study, we compute simplicial cohomology groups with different coefficients of a connected sum of certain minimal simple surfaces by using the universal coefficient theorem for cohomology groups. The method used in this paper is a different way to compute digital cohomology groups of minimal simple surfaces. We also prove some theorems related to degree properties of a map on digital sph...

متن کامل

Hybrid Fuzzy-PID Application in Boilers to Obtain Optimum Efficiency

Many real time processes have complex, uncertain and nonlinear dynamics. Boilers are nonlinear, time varying, multi-input multi-output (MIMO) systems, whose states generally vary with operating conditions. The major problem in controlling that system is that its drum water pressure and steam flow dynamics include an integrator that results a critically stable behavior. Conventional controller p...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009