scholarly journals A Novel Ship-Ship Distance Model in Restricted Channel via Gaussian-TRR Identification

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Jie Zhang ◽  
Yingjun Zhang
Keyword(s):  
Collision Detection ◽  
Trust Region ◽  
Motion Simulation ◽  
Simulation Approach ◽  
Gaussian Models ◽  
Ship Manoeuvring ◽  
Detection And Identification ◽  
Intersection Area ◽  
Distance Model ◽  
Ship Safety

Very large ships are crucial cargo ships that are relatively difficult to manoeuvre, and ship-ship distance is a vital manoeuvring parameter in restricted channel. To ensure ship safety and improve scheduling efficiency, this study established a ship-ship distance model in restricted channel by ship manoeuvring motion simulation, collision detection, and identification modelling. Firstly, the ship manoeuvring model calculated the forces and moments of ship-ship interaction and ship-bank interaction. Then, the collision detection was applied to calculate the intersection area of ship collision. Secondly, the discrete numerical simulation approach was employed with varying speed and distance, and the intersection area was counted. Finally, the 3D Gaussian models of encountering and overtaking were identified by the trust-region-reflective (TRR) algorithm, and ship-ship distance and prohibited zone were proposed. The results show that the minimum ship-ship distance for encountering and overtaking is 1.50 and 2.4 ship beam, respectively, which is consistent with Japan’s standard. The numerical results revealed that the prohibited zone is an elliptical shape. The ship-ship distance and prohibited zone serve as ship safety domain for collision avoidance during harbor approaching.

The Presence Research on 6-DOF Tank Driving Simulator

2010 ◽  
Vol 44-47 ◽  
pp. 1229-1233
Author(s):  
Qing Hua Cao
Keyword(s):  
Collision Detection ◽  
Driving Simulator ◽  
System Development ◽  
Object Oriented ◽  
Simulation Software ◽  
Visual Simulation ◽  
Object Model ◽  
Motion Simulation ◽  
Dynamics Model ◽  
Multigen Creator

with computer graphics technology continually improved, visual simulation system development of sports simulators has become the hotspot. The structure and work principle of 6-DOF tank virtual driving simulator are presented, motion simulation of driven equipment are done by developed based on advanced simulation software(MultiGen Creator and OpenGVS SDK), which is combined with the Object-Oriented method. Dynamics model of simulate system is established , object model is disposed and collision detection is briefly analyzed. The immersion of this visual simulation has been confirmed experimentally.

scholarly journals Adequate motion simulation and collision detection for soccer playing humanoid robots

2009 ◽  
Vol 57 (8) ◽  
pp. 786-795 ◽  
Author(s):  
Martin Friedmann ◽  
Karen Petersen ◽  
Oskar von Stryk
Keyword(s):  
Collision Detection ◽  
Humanoid Robots ◽  
Motion Simulation

A Motion Modification Algorithm for Memory-Based Human Motion Simulation

2002 ◽  
Vol 46 (13) ◽  
pp. 1172-1175 ◽  
Author(s):  
Woojin Park ◽  
Don B. Chaffin ◽  
Bernard J. Martin
Keyword(s):  
Simulation Models ◽  
Human Motion ◽  
Motion Simulation ◽  
Simulation Approach ◽  
Ergonomic Design ◽  
Novel Approach ◽  
Different Types ◽  
Human Motion Simulation ◽  
Human Motions

Simulating human motions in the virtual CAD world is important in the computerized ergonomic design of products and workplaces. The present study introduces a novel, memory-based approach for simulating realistic human motions and presents a motion modification algorithm. in this novel approach, realistic human motions are simulated by modifying existing motion samples stored in a motion database. The proposed motion modification algorithm was found to be able to simulate human motions accurately. The memory-based motion simulation approach has advantages over existing simulation models as it can simulate qualitatively different types of motions on a single platform, predict motions of different styles, and continually learn new motions.

A Motion Simulation Approach Integrated into a Design Engineering Process

2006 ◽  
Author(s):  
Gilles Monnier ◽  
Frédéric Renard ◽  
Adrien Chameroy ◽  
Xuguang Wang ◽  
Jules Trasbot
Keyword(s):  
Design Engineering ◽  
Motion Simulation ◽  
Simulation Approach ◽  
Engineering Process

Application of the Concave Arc Surface Collision Detection Method to Virtual Assembly

2021 ◽  
Author(s):  
xin shi ◽  
Li Tian
Keyword(s):  
Collision Detection ◽  
Detection Method ◽  
Power Line ◽  
Robot Hand ◽  
Relative Location ◽  
Motion Simulation ◽  
Detection Techniques ◽  
Exact Location ◽  
Surface Collision ◽  
Manipulation Process

Abstract Exact location calculation between each part of a parallel groove clamp when connecting a power line with a jumper is addressed in this paper. The relative location between a concave clamp and convex power line cannot be measured directly in live-line manipulation. We propose a concave arc surface collision detection method embedded in motion simulation. The relative location between irregular concave parts in the manipulation process can be obtained. The method is found to be computationally less expensive than convex partitioning collision detection techniques. This research provides a foundation for further study on robot hand manipulation with irregular assembly.

SOLIDWORKS ADD-IN FOR MOTION SIMULATION, LAYOUT ANALYSIS AND COLLISION DETECTION OF SUBSTRATE HANDLING ROBOTS

2020 ◽  
Vol 70 (1) ◽  
Author(s):  
Nikolay Bratovanov
Keyword(s):  
Collision Detection ◽  
Semiconductor Device ◽  
3D Models ◽  
Motion Simulation ◽  
Layout Analysis ◽  
Offline Programming ◽  
Reducing Costs ◽  
Simulation And Evaluation ◽  
Programming Analysis ◽  
And Behavior

The paper is dedicated to the implementation of a tool for motion simulation, layout analysis, and collision detection of substrate handling robots in the form of an add-in for SolidWorks. The main goal is developing a system that allows the direct usage of standard SolidWorks robot 3D models for simulation, offline programming, analysis, and optimization of automated cells, applicable in the field of semiconductor device manufacturing. The resultant system allows the simultaneous execution of de-sign, simulation, and evaluation activities, based on a single software platform, thus increasing productivity, saving time, and reducing costs. The proposed add-in concept contributes to achieving a much more integrated appearance and behavior of the tool, enhancing its functionality, and eliminating issues associated with reliability and security.

Collision detection in motion simulation

1983 ◽  
Vol 7 (3-4) ◽  
pp. 285-293 ◽  
Author(s):  
Tetsuya Uchiki ◽  
Toshiaki Ohashi ◽  
Mario Tokoro
Keyword(s):  
Collision Detection ◽  
Motion Simulation

Human - robot collision detection and identification based on fuzzy and time series modelling

Robotica ◽  
2014 ◽  
Vol 33 (9) ◽  
pp. 1886-1898 ◽  
Author(s):  
Fotios Dimeas ◽  
L. D. Avendaño-Valencia ◽  
Nikos Aspragathos
Keyword(s):  
Time Series ◽  
Collision Detection ◽  
Detection System ◽  
Experimental Results ◽  
Explicit Model ◽  
Critical Importance ◽  
Fuzzy Identification ◽  
External Torque ◽  
Detection And Identification ◽  
Time Series Modelling

SUMMARYIn this paper, two methods are proposed and implemented for collision detection between the robot and a human based on fuzzy identification and time series modelling. Both methods include a collision detection system for each joint of the robot that is trained to approximate the external torque. In addition, the proposed methods are able to detect the occurrence of a collision, the link that collided and to some extent the magnitude of the collision without using the explicit model of the robot. Since the speed of the detection is of critical importance for mitigating the danger, attention is paid to recognise a collision as soon as possible. Experimental results conducted with a KUKALWR manipulator using two joints in planar motion, verify the validity on both methods.

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