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The Application of Comprehensive Service Flying Hour to the Failure Analysis of Corrosion Fatigue Life

Lin Ming,Jin Ping,Sun Mingli

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 65-67

Abstract:

The aircraft service air-ground-air environmental spectrum consists of two parts： flying environmentalmust be determined based on the environmental spectrum of aircraft service, in which factors such as flyingtime, calendar time and comprehensive service flying time are taken into account.analytical method of structural fatigue, the overhaul life of the hinge is discussed in respect of flyingtime, calendar time and comprehensive service flying time.

Keywords： corrosion     corrosion fatigue     flying time     calendar time     comprehensive service flying time    

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A Cyber-Physical Routing Protocol Exploiting Trajectory Dynamics for Mission-Oriented Flying Ad Hoc Article

Die Hu, Shaoshi Yang, Min Gong, Zhiyong Feng, Xuejun Zhu

Engineering 2022, Volume 19, Issue 12,   Pages 217-227 doi: 10.1016/j.eng.2021.10.022

Abstract:

As a special type of mobile ad hoc network (MANET), the flying ad hoc network (FANETcross-disciplinary integration, which makes full use of the mission-determined trajectory dynamics to construct the time

Keywords： Cyber-physical system     Flying ad hoc network (FANET)     Routing protocol     Trajectory dynamics     Unmanned    

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Lateral Vibration Analyses of Flying Vehicle under Thrust and Drag

Song Jian

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 63-72

Abstract:

In this paper, the influence of thrust and air drag on rocket lateral vibration is studied, and the frequency reduction under the thrust and drag is analyzed. The formulas for evaluation of the changes of frequencies and vibration modes are obtained. The equations of transverse movement when nozzle connected rigidly with rocket and related boundary conditions form the basis for analyses. The conclusions obtained are applicable for active accelerating and passive decelerating parts of trajectory as well as the cruise flight when thrust and drag are balanced. The analyses show that for small thrust and small axial overload, the discrepancy resulted from different calculation methods is not big, whereas for the heavy overloaded case a more accurate solution is extremely necessary.

Keywords： aircraft     rocket     lateral vibration     thrust and drag     vibration mode and frequency    

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The analysis & effect of excavation of rock by controlled blastingin the Olympic Games flying saucer

Shen Zhenyu,Zhang Pengjun,Wang Xuguang,Yu Yalun

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 13-16

Abstract: >The application of the technique of the excavation by long-hole type blasting in the Olympic Games flying-saucerthe longer length of stemming to control the danger of blasting vibration and fly rock,at the same time

Keywords： excavation of rock     long-hole type blasting     presplitting blasting     overbreak rock    

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General expression for linear and nonlinear time series models

Ren HUANG, Feiyun XU, Ruwen CHEN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 15-24 doi: 10.1007/s11465-009-0015-z

Abstract: The typical time series models such as ARMA, AR, and MA are founded on the normality and stationarityThis paper proposes a general expression for linear and nonlinear auto-regressive time series modelsThe modeling and prediction accuracy of the GNAR model is superior to the classical time series models

Keywords： linear and nonlinear     autoregressive model     system identification     time series analysis    

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Run-time system based on LinSERCANS and Soft-PLC

Cunfeng KANG, Chong WANG, Chunmin MA, Xudong HUANG, Renyuan FEI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 120-124 doi: 10.1007/s11465-009-0019-8

Abstract: It is able to combine LinSERCANS with the Soft-PLC, and a run-time system is developed based on the interfacetechnology of the serial real-time communication system (SERCOS) and technology of soft-PLC.This run-time system has been used in all electronic injection molding machines and works very well.

Keywords： Soft-PLC     run-time system     LinSERCANS     dynamic link libraries    

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Nonlinear programming control using differential aerodynamic drag for CubeSat formation flying Article

Sheng-chao DENG, Tao MENG, Zhong-he JIN

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 7,   Pages 867-881 doi: 10.1631/FITEE.1500493

Abstract: Because of their volume and power limitation, it is difficult for CubeSats to configure a traditional propulsion system. Atmospheric drag is one of the space environmental forces that low-orbit satellites can use to realize orbit adjustment. This paper presents an integrated control strategy to achieve the desired in-track formation through the atmospheric drag difference, which will be used on ZJUCubeSat, the next pico-satellite of Zhejiang University and one of the participants of the international QB50 project. The primary mission of the QB50 project is to explore the near-Earth thermosphere and ionosphere at the orbital height of 90–300 km. Atmospheric drag cannot be ignored and has a major impact on both attitude and orbit of the satellite at this low orbital height. We conduct aerodynamics analysis and design a multidimensional nonlinear constraint programming (MNLP) strategy to calculate different desired area–mass ratios and corresponding hold times for orbit adjustment, taking both the semimajor axis and eccentricity into account. In addition, area–mass ratio adjustment is achieved by pitch attitude maneuver without any deployable mechanism or corresponding control. Numerical simulation based on ZJUCubeSat verifies the feasibility and advantage of this design.

Keywords： QB50     ZJUCubeSat     Atmospheric drag     Formation flying    

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Two-stage scheduling on batch and single machines with limited waiting time constraint

Zhongshun SHI, Zewen HUANG, Leyuan SHI

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 368-374 doi: 10.15302/J-FEM-2017034

Abstract: study addresses the problem of two-stage scheduling on batch and single machines with limited waiting time

Keywords： batch machine     flow shop     makespan     limited waiting time    

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Analyzing construction safety through time series methods

Houchen CAO, Yang Miang GOH

Frontiers of Engineering Management 2019, Volume 6, Issue 2,   Pages 262-274 doi: 10.1007/s42524-019-0015-6

Abstract: Various time series (TS) methods were adopted for identifying the leading indicators or predictors of

Keywords： time series     temporal     construction safety     leading indicators     accident prevention     forecasting    

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Convergence to real-time decision making

James M. TIEN

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 204-222 doi: 10.1007/s42524-019-0040-5

Abstract: Real-time decision making reflects the convergence of several digital technologies, including those concernedwith the promulgation of artificial intelligence and other advanced technologies that underpin real-timeMore specifically, real-time decision making can be depicted in terms of three converging dimensions:Internet of Things, decision making, and real-time.Real-time includes mobile networks, autonomous vehicles, and artificial general intelligence.

Keywords： real-time decision making     services     goods     ServGoods     Big Data     Internet of Things     artificial intelligence    

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Damage identification in connections of moment frames using time domain responses and an optimization

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 851-866 doi: 10.1007/s11709-021-0739-3

Abstract: this study, an optimization-based method for joint damage identification of moment frames using the time-domain

Keywords： damage identification     beam-to-column connection     time-domain response     optimization    

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origins of schedule management: the concepts used in planning, allocating, visualizing and managing time

Lynda M. BOURNE, Patrick WEAVER

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 150-166 doi: 10.15302/J-FEM-2018012

Abstract: The first section of the paper looks at the development of concepts that allow the visualization of timethe emergence of computers, dynamic calculations and integrated data from the 1950s to the present time

Keywords： time management     scheduling     CPM     PERT     Gantt     Critical Path     bar chart    

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Sustainability of steel structures: towards an integrated approach to life-time engineering design

Raffaele LANDOLFO, Lucrezia CASCINI, Francesco PORTIOLI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 304-314 doi: 10.1007/s01709-011-0123-9

Abstract: Indeed the current trend in civil engineering research is moving towards life-time engineering, withimplement integrated methodologies to consider as a whole all the sustainability requirements according to time-dependentof the concept of sustainability applied to constructions, this paper presents an overview of life-timemetal structures with respect to the degradation phenomena able to impair the structural capacity over timeFinally a proposal towards an integrated approach to life-time engineering design of steel structures

Keywords： sustainability     life-time engineering     performance based design     durability     metal structures    

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Modal analysis of acoustic leak signal in pipelines using time-frequency analysis

JIAO Jing-pin, FEI Ren-yuan, HE Cun-fu, WU Bin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 146-150 doi: 10.1007/s11465-006-0013-3

Abstract: In this paper, the acoustic leak signal is analyzed in the time-frequency domain.Based on the relation of time-frequency distribution of the acoustic leak signal and the dispersion curves

Keywords： dispersion     selection     guided     research     time-frequency    

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A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 215-221 doi: 10.1007/s11465-006-0004-4

Abstract: For most time-domain identification methods, a complete measurement for unique identification resultsthan the number of structural degrees of freedom (DOFs) in practical applications, and thus make the time-domainapproach is proposed in this study to identify the structural parameters of a large-scale structure in the timeThe super-element model used for time domain identification is first discussed in this study.parameters can be identified using a relatively small number of transducers, and the computational time

Keywords： numerical     effective decomposing     parameterization procedure     divide-and-conquer ability     time-domain identification    

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Title Author Date Type Operation

The Application of Comprehensive Service Flying Hour to the Failure Analysis of Corrosion Fatigue Life

Lin Ming,Jin Ping,Sun Mingli

Journal Article

A Cyber-Physical Routing Protocol Exploiting Trajectory Dynamics for Mission-Oriented Flying Ad Hoc

Die Hu, Shaoshi Yang, Min Gong, Zhiyong Feng, Xuejun Zhu

Journal Article

Lateral Vibration Analyses of Flying Vehicle under Thrust and Drag

Song Jian

Journal Article

The analysis & effect of excavation of rock by controlled blastingin the Olympic Games flying saucer

Shen Zhenyu,Zhang Pengjun,Wang Xuguang,Yu Yalun

Journal Article

General expression for linear and nonlinear time series models

Ren HUANG, Feiyun XU, Ruwen CHEN

Journal Article

Run-time system based on LinSERCANS and Soft-PLC

Cunfeng KANG, Chong WANG, Chunmin MA, Xudong HUANG, Renyuan FEI

Journal Article

Nonlinear programming control using differential aerodynamic drag for CubeSat formation flying

Sheng-chao DENG, Tao MENG, Zhong-he JIN

Journal Article

Two-stage scheduling on batch and single machines with limited waiting time constraint

Zhongshun SHI, Zewen HUANG, Leyuan SHI

Journal Article

Analyzing construction safety through time series methods

Houchen CAO, Yang Miang GOH

Journal Article

Convergence to real-time decision making

James M. TIEN

Journal Article

Damage identification in connections of moment frames using time domain responses and an optimization

Journal Article

origins of schedule management: the concepts used in planning, allocating, visualizing and managing time

Lynda M. BOURNE, Patrick WEAVER

Journal Article

Sustainability of steel structures: towards an integrated approach to life-time engineering design

Raffaele LANDOLFO, Lucrezia CASCINI, Francesco PORTIOLI

Journal Article

Modal analysis of acoustic leak signal in pipelines using time-frequency analysis

JIAO Jing-pin, FEI Ren-yuan, HE Cun-fu, WU Bin

Journal Article

A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Journal Article