Resource Type

Journal Article 1411

Conference Videos 77

Conference Topics 1

Year

2024 1

2023 91

2022 136

2021 129

2020 100

2019 76

2018 84

2017 75

2016 63

2015 80

2014 51

2013 51

2012 40

2011 47

2010 54

2009 41

2008 45

2007 55

2006 53

2005 37

open ︾

Keywords

system 17

optimization 15

index system 10

system engineering 9

Artificial intelligence 8

Multi-agent system 8

management 8

management system 8

simulation 8

system construction 8

Qian Xuesen 7

modeling 6

open complex giant system 6

public health 6

engineering management 5

fault diagnosis 5

innovation 5

sustainable development 5

system integration 5

open ︾

Search scope:

排序： Display mode:

What if the Global Positioning System Didn’t Work?

Mitch Leslie

Engineering 2019, Volume 5, Issue 6,   Pages 985-986 doi: 10.1016/j.eng.2019.10.007

HTML PDF Collect

Influence of Rigidity of Feed System With Ball Screw in NC Lathe on Positioning Precision

Wu Nanxing,Hu Rufu,Sun Qinghong

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 46-49

Abstract:

Rigidity of feed system with ball screw in NC lathe has a major influence on loss of momentum andpositioning precision.Based on the spring mechanics model and the quality of the feed system, the analytic formulation forTheoretic basis for designing the structure, reducing loss of momentum and increasing positioning precisionof feed system has been provided.

Keywords： NC lathe     rigidity     loss of momentum     positioning precision    

HTML PDF Collect

The hoisting techniques of huge segments of the steel tower

Zhang Ping,Xiao Wenfu,Huang Tao,Jiang Jian,Cai Wei

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 58-62

Abstract:

Taizhou Changjiang River Highway Bridge adopts a three-tower, two-span layout for the first time in the world. The longitudinal shape of the middle tower is herringbone, and the steel gallows frame is adopted in the cross direction. This paper describes the installation, locating, and adjusting construction techniques of the huge segments including the selection of hoisting equipment.

Keywords： huge segments of steel tower     lifting     positioning     adjusting     precision control     positioning system    

HTML PDF Collect

The Global Positioning System (GPS): Creating Satellite Beacons in Space, Engineers Transformed Daily

Peter Weiss

Engineering 2021, Volume 7, Issue 3,   Pages 290-303 doi: 10.1016/j.eng.2021.02.001

Keywords： EngineeringAchievements    

HTML PDF Collect

Comprehensive analysis of the influence of structural and dynamic parameters on the accuracy of nano-precision positioning

Chengyuan LIANG, Fang YUAN, Xuedong CHEN, Wei JIANG, Lizhan ZENG, Xin LUO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 255-272 doi: 10.1007/s11465-019-0538-x

Abstract: Nano-precision positioning stages are characterized by rigid-flexible coupling systems.A systematic approach to modeling the dynamic accuracy of a nano-precision positioning stage is developedin this work by integrating a multi-rigid-body dynamic model of the mechanical system and measurementsystem models.The software framework is then applied to the design of a nano-precision positioning stage used in a

Keywords： nano-precision positioning stage     analysis and design     structural and dynamic parameters     dynamic accuracy    

HTML PDF Collect

Kinematic calibration of precise 6-DOF stewart platform-type positioning systems for radio telescope

Juan Carlos JáUREGUI, Eusebio E. HERNáNDEZ, Marco CECCARELLI, Carlos LóPEZ-CAJúN, Alejandro GARCíA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 252-260 doi: 10.1007/s11465-013-0249-7

Abstract:

The pose accuracy of a parallel robot is a function of the mobile platform posture. Thus, there is no a single value of the robot’s accuracy. In this paper, two novel methods for estimating the accuracy of parallel robots are presented. In the first method, the pose accuracy estimation is calculated by considering the propagation of each error, i.e., error variations are considered as a function of the actuator’s stroke. In the second method, it is considered that each actuator has a constant error at any stroke. Both methods can predict pose accuracy of precise robots at design stages, and/or can reduce calibration time of existing robots. An example of a six degree-of-freedom parallel manipulator is included to show the application of the proposed methods.

Keywords： pose errors     error estimation     parallel robot     radio telescopes    

HTML PDF Collect

Analysis and control of micro-stepping characteristics of ultrasonic motor

Ning CHEN, Jieji ZHENG, Xianliang JIANG, Shixun FAN, Dapeng FAN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 585-599 doi: 10.1007/s11465-019-0577-3

Abstract: operation and nuclear magnetic resonance, which require a precise compact-structure non-magnetization positioning

Keywords： ultrasonic motor     stepping characteristics     pulse number control     synchronous acquisition system     precisepositioning    

HTML PDF Collect

Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 265-278 doi: 10.1007/s11465-017-0453-y

Abstract:

Most of the XY positioning stages proposed in previous studies are mainly designed byIn this study, a 2-degree-of-freedom linear compliant positioning stage (LCPS) is developed by mechatronicdesign to balance the interacting performance indicators and realize the desired positioning stage.

Keywords： mechatronic design     linear compliant positioning stage     large travel range     high out-of-plane payload capacity    

HTML PDF Collect

Discussion on the Agricultural Information Science——On Construction of Agricultural Information System

Wang Renchao,Huang Jingfeng,Shi Zhou,Wang Ke

Strategic Study of CAE 2000, Volume 2, Issue 6,   Pages 80-83

Abstract:

Based on “On Construction of Agricultural Information System Engineering”，the developmentThe agricultural information science was defined as an agricultural science system which is based ontechnique, global positioning system technique and computer net system technique.technology, geographic information system technology, global positioning system technology and computernet system technology and its function were introduced simply.

Keywords： agricultural information science     agricultural information system technology     remote sensing technology     geographic information system technology     global positioning system technology     computer net technology    

HTML PDF Collect

The realization of automatic positioning of crane in high precise in the storehouse for nuclear waste

Luan Xiuchun,Han Weishi,Wang Junling,Yang Aiguang

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 45-50

Abstract:

This paper sets forth the realization of automatic positioning of cranestorehouse for nuclear waste, including the hardware configuration and software configuration of the control system

Keywords： nuclear waste     crane     automatic control     positioning    

HTML PDF Collect

Development of Satellite and Satellite-Independent Navigation Technologies from the Perspective of PNT System

Guo Shuren, Jiang Kun, Li Xing, Liu Gang, Li Ping, Li Linze, Guo Siyuan

Strategic Study of CAE 2023, Volume 25, Issue 2,   Pages 50-58 doi: 10.15302/J-SSCAE-2023.02.006

Abstract: navigation has all-weather, all-time, and low-cost advantages and has become the most widely used means of positioningThe technological characteristics and system positioning of satellite navigation are summarized in thisThe overall positioning of satellite navigation as the most common demand satisfied and the core andcornerstone of the PNT system is further clarified.navigation systems should be accelerated to improve satellite navigation performance and maximizing system

Keywords： positioning     navigation     and timing system     satellite navigation     satellite-independent navigation     technologyintegration     system development    

HTML PDF Collect

Positioning Australia for the Future

Nicholas Brown, John Dawson, Ryan Ruddick

Engineering 2020, Volume 6, Issue 8,   Pages 857-859 doi: 10.1016/j.eng.2020.07.012

HTML PDF Collect

Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 101-105 doi: 10.1007/s11465-008-0018-1

Abstract: The positioning of the motor is achieved by the cooperation between the stator projections and rotor

Keywords： miss-step     bi-direction     Two-phase sinusoidal     positioning     accumulative    

HTML PDF Collect

A Precision-Positioning Method for a High-Acceleration Low-Load Mechanism Based on Optimal Spatial and Article

Xin Chen,Youdun Bai,Zhijun Yang,Jian Gao,Gongfa Chen

Engineering 2015, Volume 1, Issue 3,   Pages 391-398 doi: 10.15302/J-ENG-2015063

Abstract:

High-speed and precision positioning are fundamental requirements for high-acceleration low-load mechanismsTherefore, we propose a new structural optimization and velocity-planning method for the precision positioningamplitude of residual vibration could be decreased by more than 20% via structural optimization and the positioningThis method provides an effective theoretical support for the precision positioning of high-acceleration

Keywords： high-acceleration low-load mechanism     precision positioning     spatial and temporal distribution     inertial    

HTML PDF Collect

Detection of the Pine Wilt Disease Tree Candidates for Drone Remote Sensing Using Artificial Intelligence Techniques Article

Mutiara Syifa, Sung-Jae Park, Chang-Wook Lee

Engineering 2020, Volume 6, Issue 8,   Pages 919-926 doi: 10.1016/j.eng.2020.07.001

Abstract: Furthermore, compared the accuracy of two types of Global Positioning System (GPS) data, collected using

Keywords： Pine wilt disease     Drone remote sensing     Artificial neural network     Support vector machine     Global positioningsystem    

HTML PDF Collect

Title Author Date Type Operation

What if the Global Positioning System Didn’t Work?

Mitch Leslie

Journal Article

Influence of Rigidity of Feed System With Ball Screw in NC Lathe on Positioning Precision

Wu Nanxing,Hu Rufu,Sun Qinghong

Journal Article

The hoisting techniques of huge segments of the steel tower

Zhang Ping,Xiao Wenfu,Huang Tao,Jiang Jian,Cai Wei

Journal Article

The Global Positioning System (GPS): Creating Satellite Beacons in Space, Engineers Transformed Daily

Peter Weiss

Journal Article

Comprehensive analysis of the influence of structural and dynamic parameters on the accuracy of nano-precision positioning

Chengyuan LIANG, Fang YUAN, Xuedong CHEN, Wei JIANG, Lizhan ZENG, Xin LUO

Journal Article

Kinematic calibration of precise 6-DOF stewart platform-type positioning systems for radio telescope

Juan Carlos JáUREGUI, Eusebio E. HERNáNDEZ, Marco CECCARELLI, Carlos LóPEZ-CAJúN, Alejandro GARCíA

Journal Article

Analysis and control of micro-stepping characteristics of ultrasonic motor

Ning CHEN, Jieji ZHENG, Xianliang JIANG, Shixun FAN, Dapeng FAN

Journal Article

Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Journal Article

Discussion on the Agricultural Information Science——On Construction of Agricultural Information System

Wang Renchao,Huang Jingfeng,Shi Zhou,Wang Ke

Journal Article

The realization of automatic positioning of crane in high precise in the storehouse for nuclear waste

Luan Xiuchun,Han Weishi,Wang Junling,Yang Aiguang

Journal Article

Development of Satellite and Satellite-Independent Navigation Technologies from the Perspective of PNT System

Guo Shuren, Jiang Kun, Li Xing, Liu Gang, Li Ping, Li Linze, Guo Siyuan

Journal Article

Positioning Australia for the Future

Nicholas Brown, John Dawson, Ryan Ruddick

Journal Article

Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Journal Article

A Precision-Positioning Method for a High-Acceleration Low-Load Mechanism Based on Optimal Spatial and

Xin Chen,Youdun Bai,Zhijun Yang,Jian Gao,Gongfa Chen

Journal Article

Detection of the Pine Wilt Disease Tree Candidates for Drone Remote Sensing Using Artificial Intelligence Techniques

Mutiara Syifa, Sung-Jae Park, Chang-Wook Lee

Journal Article