Results 11 to 20 of about 331,445 (284)

Planning Maximum-Manipulability Cutting Paths [PDF]

open access: yesIEEE Robotics and Automation Letters, 2020
This letter presents a method for constrained motion planning from vision, which enables a robot to move its end-effector over an observed surface, given start and destination points. The robot has no prior knowledge of the surface shape, but observes it from a noisy point cloud.
Tommaso Pardi   +5 more
openaire   +1 more source

Optimization and simulation of adaptive mining cutting path in complex undulating coal seam

open access: yesMeitan kexue jishu, 2023
Adaptive cutting planning of shearer based on the fluctuation of coal seam is one of the key problems to realize intelligent unmanned mining in coal mine.
Shixin GONG   +3 more
doaj   +1 more source

Boom-type roadheader autonomous speed regulation cutting control system

open access: yesGong-kuang zidonghua, 2023
The existing boom-type roadheader cutting control adopts a relatively simple control method and the cutting head completes the roadway section cutting at a constant speed. There's no comprehensive consideration of trajectory planning and autonomous speed
ZHANG Xuhui   +5 more
doaj   +1 more source

Optimisation of Planning Parameters for Machining Blade Electrode Micro-Fillet with Scallop Height Modelling

open access: yesMicromachines, 2021
Aero-engine blades are manufactured by electroforming process with electrodes. The blade electrode is usually machined with five-axis micromilling to get required profile roughness. Tool path planning parameters, such as cutting step and tool tilt angle,
Yue Liu   +5 more
doaj   +1 more source

Adaptive intelligent cutting technology of the shearer based on the high-precision three-dimensional dynamic geological model

open access: yes矿业科学学报, 2023
If the shearer is cutting coal using the "memory cutting" technique, a manual demonstration is required.The memory cutting technology has higher requirements on the reserving conditions of coal seams.When the coal seam fluctuates greatly, frequent manual
Hou Yunbing   +5 more
doaj   +1 more source

A New Challenge: Path Planning for Autonomous Truck of Open-Pit Mines in The Last Transport Section

open access: yesApplied Sciences, 2020
During the operation of open-pit mining, the loading position of a haulage truck often changes, bringing a new challenge concerning how to plan an optimal truck transportation path considering the terrain factors.
Ziyu Zhao, Lin Bi
doaj   +1 more source

Research on Autonomous Cutting Method of Cantilever Roadheader

open access: yesEnergies, 2022
Roadway excavation is the leading project in coal mining, and the cantilever roadheader is the main equipment in roadway excavation. Autonomous cutting by cantilever roadheaders is the key to realize safe, efficient and intelligent tunneling for ...
Ziyue Xu   +5 more
doaj   +1 more source

Cutting coal path planning of shearer up-drum based on double arc spline curve

open access: yesGong-kuang zidonghua, 2020
The life of the drum cutters is shortened and the coal output rate is reduced due to the problem that the shearer up-drum often cuts the roof rocks. It is therefore essential to plan the cutting path of the up-drum.
CHAI Haoluo, XING Cu'en, HUA Tongxing
doaj   +1 more source

A Disaster Relief UAV Path Planning Based on APF-IRRT* Fusion Algorithm

open access: yesDrones, 2023
Unmanned Aerial Vehicle (UAV) path planning has increasingly become the key research point for civilian drones to expand their use and enhance their work efficiency. Focusing on offline derivative algorithms, represented by Rapidly-exploring Random Trees
Qifeng Diao   +3 more
doaj   +1 more source

Feedrate planning for machining with industrial six-axis robots [PDF]

open access: yes, 2010
The authors want to thank Stäubli for providing the necessary information of the controller, Dynalog for its contribution to the experimental validations and X.
BEAREE, Richard   +3 more
core   +6 more sources

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