Multibody System Simulation of Drilling Rig and Work Platform Stability Assessment-PPT Presentation

PPT Presentation

Pdf Summary

The presentation describes a multibody simulation framework for assessing drilling-rig and work-platform stability. Built in Simscape Multibody, the model represents a rig’s components, joints, and degrees of freedom, enabling motion and reaction forces to be monitored. A simplified soil model uses evenly spaced spring-damper elements beneath the tracks; variable stiffness and damping values can represent non-uniform ground conditions.<br /><br />The framework was applied to a BAUER BG23H drilling rig in two scenarios: rotating the upper carriage through 360 degrees and simulating frontal tipping. The rotation case used ten soil-support points with uniform stiffness and damping. The tipping case used lower stiffness at the track front than at the rear to model heterogeneous soil.<br /><br />The authors propose the tool as a flexible way to simulate different rig designs and soil conditions, potentially in real time using machine sensor data. It could also support offline stability calculations based on industry standards and soil properties. Its main limitation is that the soil beneath the tracks is represented very simply; this trade-off keeps the model computationally efficient enough to run alongside machine operations.

Keywords

multibody simulation

drilling rig stability

work platform stability

Simscape Multibody

spring-damper soil model

BAUER BG23H

track support points

frontal tipping

reaction forces

soil conditions