scholarly journals A Study on Intelligent GIS Installation System Based on Six-DOF Parallel Multi-axis Motion Control

2021 ◽  
Vol 2074 (1) ◽  
pp. 012066
Author(s):  
Ti Liu ◽  
Hongwei Mao ◽  
Dong Lei ◽  
Boming Li ◽  
Dahong Fu
Keyword(s):  
Motion Control ◽  
Power Transmission ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Positioning System ◽  
Practical Applications ◽  
Visual Positioning ◽  
Six Dof ◽  
Six Degree Of Freedom ◽  
Three Dimensional Space

Abstract Aiming at the connection of pipelines during the GIS installation process of power transmission and transformation projects, this subject designs and produces an intelligent GIS installation system based on 6-DOF parallel multi-axis motion control, which is applied to practical applications. The intelligent installation system can realize six independent motions and their combined motions in three-dimensional space. Relying on the multi-dimensional visual positioning system, through the six-degree-of-freedom parallel multi-axis motion control system, the precise docking during the installation of the precision GIS cavity can be realized.

ON THE DOI MODEL FOR THE SUSPENSIONS OF ROD-LIKE MOLECULES IN COMPRESSIBLE FLUIDS

2012 ◽  
Vol 22 (10) ◽  
pp. 1250027 ◽  
Author(s):  
HANTAEK BAE ◽  
KONSTANTINA TRIVISA
Keyword(s):  
Dimensional Space ◽  
Initial Density ◽  
Three Dimensional ◽  
Orientation Distribution ◽  
Polymeric Fluids ◽  
Atmospheric Sciences ◽  
Practical Applications ◽  
Doi Model ◽  
Time Existence ◽  
Three Dimensional Space

Polymeric fluids arise in many practical applications in biotechnology, medicine, chemistry, industrial processes, and atmospheric sciences. In this paper, the Doi model for the suspensions of rod-like molecules in a compressible fluid is investigated. The model under consideration describes the interaction between the orientation of rod-like polymer molecules on the microscopic scale and the macroscopic properties of the fluid in which these molecules are contained. Prescribing arbitrarily the initial density of the fluid, the initial velocity, and the initial orientation distribution in suitable spaces, we establish the global-in-time existence of a weak solution to our model defined on a bounded domain in the three-dimensional space. The proof relies on the construction of an approximate sequence of solutions by introducing appropriate regularization and the establishment of compactness.

The Osculatory Packing of a Three Dimensional Sphere

1973 ◽  
Vol 25 (2) ◽  
pp. 303-322 ◽  
Author(s):  
David W. Boyd
Keyword(s):  
Dimensional Space ◽  
Three Dimensional ◽  
Higher Dimensions ◽  
Dimensional Euclidean Space ◽  
Dimensional Sphere ◽  
Specific Knowledge ◽  
Precise Information ◽  
Practical Applications ◽  
Physical Problems ◽  
Three Dimensional Space

Packings by unequal spheres in three dimensional space have interested many authors. This is to some extent due to the practical applications of such investigations to engineering and physical problems (see, for example, [16; 17; 31]). There are a few general results known concerning complete packings by spheres in N-dimensional Euclidean space, due mainly to Larman [20; 21]. For osculatory packings, although there is a great deal of specific knowledge about the two-dimensional situation, the results for higher dimensions, such as [4], rely on general methods which do not give particularly precise information.

Dynamic Characteristic Analysis of Transmission Tower

2014 ◽  
Vol 494-495 ◽  
pp. 1719-1722
Author(s):  
Xiang Zan Xie ◽  
Ke Lun Wei
Keyword(s):  
Large Scale ◽  
Power Transmission ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Modern Society ◽  
The Finite Element Method ◽  
Transmission Tower ◽  
Characteristic Analysis ◽  
Safety And Reliability ◽  
Three Dimensional Space

Transmission tower is a widely used higher order statically indeterminate spatial structure, as the pillar of power transmission, modern society are increasingly concerned about its safety and reliability. This paper establishes a large-scale three-dimensional space model of transmission tower by using the finite element method, calculate and analyse the first six vibration modes and frequencies of this transmission tower, study the characteristics of each order vibration mode. These research results provide some references of design for the large-scale transmission tower.

New Books

1933 ◽  
Vol 26 (7) ◽  
pp. 444-447
Keyword(s):  
Dimensional Space ◽  
Three Dimensional ◽  
Careful Attention ◽  
Practical Applications ◽  
Computational Skill ◽  
Three Dimensional Space

This book is a revised and enlarged edition of an earlier volume. The authors have herein given careful attention to training the pupil in the analysis of three dimensional space. In order to develop computational skill, the authors have included a large number of carefully graded practical applications involving both arithmetical and algebraical computation.

scholarly journals Stabilization of a ROV in Three-dimensional Space Using an Underwater Acoustic Positioning System

2019 ◽  
Vol 52 (17) ◽  
pp. 117-122
Author(s):  
Simon Pedersen ◽  
Jesper Liniger ◽  
Fredrik F. Sørensen ◽  
Kenneth Schmidt ◽  
Malte von Benzon ◽  
...  
Keyword(s):  
Dimensional Space ◽  
Three Dimensional ◽  
Positioning System ◽  
Underwater Acoustic ◽  
Three Dimensional Space ◽  
Acoustic Positioning

Extension of the Spatial PDI Model to Three Dimensions

1997 ◽  
Vol 84 (1) ◽  
pp. 176-178
Author(s):  
Frank O'Brien
Keyword(s):  
Population Density ◽  
Dimensional Space ◽  
Finite Lattice ◽  
Three Dimensional ◽  
Upper Bounds ◽  
Three Dimensions ◽  
Lower And Upper Bounds ◽  
Density Index ◽  
Three Dimensional Space

The author's population density index ( PDI) model is extended to three-dimensional distributions. A derived formula is presented that allows for the calculation of the lower and upper bounds of density in three-dimensional space for any finite lattice.

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