A Geometry-Based Motion Planner for Direct Machining and Control

Direct Machining And Control (DMAC) is a new method of controlling machine tools directly from process planning software. A motion planning module is developed for the DMAC system that operates directly off path geometry without pre-tessellation. The motion planner is developed with the intent to process Bezier curves. The motion planning module includes a deterministic predictor-corrector-type curve interpolator, a dynamics limiting module, and a two-pass jerk-limited speed profiling algorithm. The methods are verified by machining an automotive surface in a clay medium and evaluating the resultant machine dynamics, feed rate, and chordal error throughout the machining process.

Name thesis:degree_name

MS

Grantor dc:publisher

Brigham Young University - Provo

Author dc:creator

• Cheatham, Robert M.

• motion planning
• motion planner
• motion profile
• constant speed
• parametric interpolator
• predictor-corrector
• parametric machining
• speed profile
• dynamics
• NURBS
• Bezier
• jerk-limited
• machine control
• DMAC
• direct control
• CNC
• machining
• Mechanical Engineering

Language dc:language

English

Repository record dc:identifier

https://scholarsarchive.byu.edu/etd/1411

OAI identifier oai:identifier

oai:scholarsarchive.byu.edu:etd-2410