A Critical Evaluation of Computer Subroutines for Solving Stiff Differential Equations.
Abstract
A number of commonly available computer subroutines for solving differential equation systems are tested and compared for their ability to solve stiff systems. A stiff system is defined as either: a system with widely separated eigenvalues or time constants or a system with diverging exponential terms which have small or zero coefficients due to a particular choice of initial conditions. For example, it is believed that the governing differential equations of large complex mechanical system models (such as, human-body/crash-victim simulation models, finite segment structural models, and large vibrating system models) are frequently stiff.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 15, 1978
- Accession Number
- ADA064545
Entities
People
- Dennis C. Krinke
- Ronald L. Huston
Organizations
- University of Cincinnati