Planning tool paths on free-form surfaces is a widely discussed issue. However, satisfying all the requirements of blade machining using traditional path-planning methods remains challenge. Herein, new iso-parametric strategy, based novel parameterization method and combined with conformal transformation theory, proposed. The presented strategy adapts to curvature surfaces, improving kinematic ...

This paper presents a Web-accessible tool for design of both sequential and distributed genetic algorithms. It is available to everyone with a Java-enabled Web browser and allows the user to construct, execute, observe and tune genetic algorithms through Web pages interactively. Distributed genetic algorithms are realized on the tool by multithreading and RMI (Remote Method Invocation) in Java....

This paper presents a complete procedure for tool path planning and blade machining in 5-axis manufacturing. The actual cutting contact and cutter locations can be determined by lead and tilt angles. The tool path generation is implemented by piecewise curved approximation and chordal deviation detection. An application about drive surface method promotes flexibility of tool control and stabili...

| This paper addresses trajectory planning in a dynamic workspace, i.e. motion planning for a robot subject to dynamic constraints and moving in a workspace with moving obstacles. First is introduced the novel concept of state-time space, i.e. the state space of the robot augmented of the time dimension. Like connguration space which is a tool to formulate path planning problems, state-time spa...

| This paper addresses trajectory planning in dynamic workspaces, i.e. trajectory planning for a robot subject to dynamic constraints and moving in a workspace with moving obstacles. First is introduced the novel concept of state-time space, i.e. the state space of the robot augmented of the time dimension. Like the concept of connguration space which is a tool to formulate path planning proble...

Autonomous Underwater Vehicles (AUVs) are a common tool used by oceanographers to study oceans. Most AUVs are operated by pilots who are able to interpret environmental information to make effective mission decisions; this function requires an understanding of the hardware and software of these complex systems. To enable oceanographers and pilots to more easily manage a fleet of gliders, new me...

This paper presents a collection of path planning algorithms for realtime movement of multiple robots across a Robotic Mobile Fulfillment System (RMFS). Robots are assigned to move storage units to pickers at working stations instead of requiring pickers to go to the storage area. Path planning algorithms aim to find paths for the robots to fulfill the requests without collisions or deadlocks. ...

This paper presents an improved tool positioning strategy in the 5-axis flank milling of a ruled surface by using simultaneous perturbation stochastic approximation (SPSA) techniques. The SPSA allows the near-global optimization of the machining error, even though the corresponding objective is not formulated as a closed-form representation. It adjusts all cutter locations of a tool path simult...

This paper proposes a novel method for generation of optimized tool path in 5-axis flank milling of ruled surfaces based on Particle Swarm Optimization (PSO). The 3D geometric problem, tool path generation, is transformed into a mathematical programming task with the machined surface error as the objective function in the optimization. This approach overcomes the limitation of greedy planning m...