Dynamic simulation of mechanisms
US5427531A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1992 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Oct 20, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B23/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of dynamic simulation of mechanisms which constructs the lagrangian form of the dynamics equations as pure differential equations in terms of a minimal set of generalized coordinates. The dynamics problem is separated into two parts used in the lagrangian--a kinematic analysis and a kinetics analysis. The kinematic analysis is computed using a degrees of freedom analysis. The velocities required for the kinetic analysis are computed using screw theory. Once constructed, the lagrangian dynamics equations are solved for accelerations, applied to the mechanism, and integrated over time to simulate the dynamics of the mechanism. The kinetic and kinematic analyses are approximately linearly related to the number of components in the mechanism, allowing efficient solution of dynamics problems at interactive rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.