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RISCollision-Free Path Planning by Using Nonperiodic B-Spline Curves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a method and an algorithm for the planning of collision-free paths through obstacles for robots end-effectors or autonomously guided vehicles. Fifth-order nonperiodic B-spline ...
Hertzian Damping, Tooth Friction and Bending Elasticity in Gear Impact Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This investigation presents an analytical and computer-aided study on the dynamics of meshing gears with backlash. Based on the rotary gear impact model of Yang and Sun, a modified model with ...
A Rotary Model for Spur Gear Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We develop a dynamic model for a spur gear system with backlash. This model is circular and is geometrically different from the rectilinear gear model of Azar and Crossley. By taking advantage ...
Cycloid Drives With Machining Tolerances
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cycloidal speed reducer, or cycloid drive, is an epicyclic gear train in which the profile of the planet gear is an epitrochoid and the annular sun gear has rollers as its teeth. The ...
Delamination-Free Drilling of Composite Laminates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Composite laminates in significant numbers are rendered unacceptable due to delamination that occurs during the drilling operation. Thrust generated during the drilling operation is identified as ...
Command Generation for Three-Axis CNC Machining
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the command generation for three-axis CNC machining. In the integration of CAD and CAM, it is necessary to relate machine tool dynamics and control in a CAM process ...
Constant Scallop-height Machining of Free-form Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel approach for the NC tool-path generation of free-form surfaces is presented. Traditionally, the distance between adjacent tool-paths in either the Euclidean space or in the parametric ...
On the Generation of Coordinated Motion of Five-Axis CNC/CMM Machines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an analytical study on the command generation for five-axis CNC machining or CMM measurement. In the integration of CAD and CAM, it is necessary to relate machine tool ...
Effects of Feedrate and Chisel Edge on Delamination in Composites Drilling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Delamination accompanied with the drilling of composite laminates has been recognized as a major problem. An analytical model is established to predict critical thrust force and critical feedrate ...
A Quintic Spline Interpolator for Motion Command Generation of Computer-Controlled Machines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a new method of motion command generation for computer controlled multi-axis machines. The method is based on a quintic spline interpolator (QSI) which generates motion ...