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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4, Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: The objective of the present study is to analytically investigate temperature effects of an axial-type seismic damper made of shape memory alloys (SMAs) equipped in steel frames. Based on a modified multilinear one dimensional constitutive model of SMAs, two types of SMAs are employed, which have different stress plateau and different stress growth rate with temperature increase. Temperature effects of SMA dampers on seismic performance upgrading are discussed in three aspects: different environment temperatures; rapid loading rate induced heat generation and different SMA fractions. The analysis indicates that the effect of environment temperature should be considered for the SMA damper in steel frames. However, the rapid loading rate induced heat generation has little adverse effect.

Keywords： damage control design shape memory alloy temperature effect

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Design and control optimization of energy systems of smart buildings today and in the near future

Shengwei WANG, Wenjie GANG

Frontiers of Engineering Management 2017, Volume 4, Issue 1, Pages 58-66 doi: 10.15302/J-FEM-2017005

Abstract: Design and control optimization of building energy systems therefore plays a significant role to obtainThis paper introduces a general methodology for the design and control optimization of building energyThe design on the chilled water pump system and cooling towers is improved.The control strategies for chillers, pumps and fresh air systems are optimized.The energy saving and cost from the design and control optimization methods are analyzed.

Keywords： Design optimization Optimal control Smart building Energy efficiency

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DE based economic control chart design and application for a typical petrochemical process

Zhi LI, Feng QIAN, Wenli DU, Weimin ZHONG

Frontiers of Engineering Management 2017, Volume 4, Issue 3, Pages 348-356 doi: 10.15302/J-FEM-2017043

Abstract: The common process monitoring methods always use and SPE statistic as control limits.In this study, a new economic control chart design method based on the differential evolution (DE) algorithmThe DE algorithm transforms the economic control chart design problem to an optimization problem andThis method is useful in economic control chart design and can provide guidance for the petrochemical

Keywords： petrochemical PTA economic control chart design process monitoring DE algorithm

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A hybrid LQR-PID control design for seismic control of buildings equipped with ATMD

Amir Hossein HEIDARI, Sadegh ETEDALI, Mohamad Reza JAVAHERI-TAFTI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1, Pages 44-57 doi: 10.1007/s11709-016-0382-6

Abstract: This paper presents an efficient hybrid control approach through combining the idea of proportional-integral-derivative(PID) controller and linear quadratic regulator (LQR) control algorithm.

Keywords： seismic control tuned mass dampers cuckoo search PID controller LQR controller

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Parametric study on damage control design of SMA dampers in frame-typed steel piers

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4, Pages 384-394 doi: 10.1007/s11709-009-0065-7

Abstract: This paper focuses on damage control design of SMA dampers in steel frame piers.The parameters examined are design parameters of strength ratio and stiffness ratio .Design recommendations are suggested following the results of the parametric study.

Keywords： damage control design shape memory alloy parameter study displacement-based verification strain-based

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Design, analysis, and neural control of a bionic parallel mechanism

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3, Pages 468-486 doi: 10.1007/s11465-021-0640-8

Abstract: an important role in the movement coordination and versatile locomotion of mammals, the structural designand neuromechanical control of a bionic torso have not been fully addressed.The neural control of the parallel mechanism is realized by constructing a neuromechanical network, which

Keywords： neural control behavior network rhythm motion pattern

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Multidisciplinary co-design optimization of structural and control parameters for bucket wheel reclaimer

Yongliang YUAN, Liye LV, Shuo WANG, Xueguan SONG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 406-416 doi: 10.1007/s11465-019-0578-2

Abstract: The conventional design strategy, namely, sequential strategy, is structural design followed by controlthe global optimal solution is difficult to achieve because of the discoordination of structural and controlThe co-design strategy is explored to address the aforementioned problem by combining the structuraland control system design based on simultaneous dynamic optimization approach.Results indicate that co-design strategy not only can reduce the energy consumption of the BWR but also

Keywords： bucket wheel reclaimer co-design energy-minimum optimization sequential strategy

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Optimum Design for Airliner Environmental Control System

Fang Lin,Wang Jun

Strategic Study of CAE 2006, Volume 8, Issue 1, Pages 77-80

Abstract:

In order to choose the most economical and efficient airliner environmental control system, severalThe fuel oil loss for airliner environmental control system is taken as the objective function.The optimized results can be used as the theoretic foundation for the design and research of airlinerenvironment control system.

Keywords： airliner environmental control optimum design

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The μ Robust Control Design for Mobile Satellite Antennas

Li Guo,Hu Jianfei,Ji Xianzheng

Strategic Study of CAE 2007, Volume 9, Issue 5, Pages 22-26

Abstract: ="text-align: justify;">This paper investigates the use of the μ robust controller for improving controlA robust control system of mobile satellite antennas is presented, and the μ robust controller It is clarified that the control performance of mobile satellite antennas is improved and the controlsystem still maintains satisfactory control performance despite the change of road surface condition

Keywords： mobile satellite antennas theμdesign robust control

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Newdevelopments in control design techniques of logical control networks Review Articles

Xiang-shan KONG, Shu-ling WANG, Hai-tao LI, Fuad E. ALSAADI

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 2, Pages 220-233 doi: 10.1631/FITEE.1900397

Abstract: The control design problem plays a fundamental role in the study of logical control networks (LCNs).This paper presents a detailed survey on new developments in control design techniques of LCNs.Then, we move on to some new developments for control design techniques of LCNs, including the reachableset approach, the pinning control technique, the control Lyapunov function approach, the event-triggeredcontrol technique, and the sampled-data control technique.

Keywords： Logical control network Control design Semi-tensor product of matrices

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Dynamic design of green stormwater infrastructure

Robert G. Traver, Ali Ebrahimian

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0973-z

Abstract: This paper compares ongoing research results on hydrologic performance to common design and creditingExamples used in this article are primarily stormwater control measures built for research on the campusThe framework for a dynamic approach is discussed, with a view to broaden our design focus by including

Keywords： Low Impact Development (LID) Stormwater control measures Green infrastructure Stormwater design

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Smart product design for automotive systems

A. Galip ULSOY

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1, Pages 102-112 doi: 10.1007/s11465-019-0527-0

Abstract: For example, carburetors have been replaced by fuel injection and air-fuel ratio control, leading to, electronic and computer/control components.their applications to problems in automotive control are highlighted.compared to sequential design.The control proxy function method, which provides ease of design as in the sequential approach and approximates

Keywords： mechatronics automotive control co-design component swapping modularity active suspensions variable camshaft

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reference tracking control design for a class of nonlinear systems with time-varying delays

Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9, Pages 759-768 doi: 10.1631/FITEE.1500053

Abstract: This paper investigates the trajectory tracking control for a class of nonlinear systems with timevaryingFirst, the definition of the tracking control is given.Then criteria on the tracking controller design are derived in terms of LMIs such that the output ofA scaling factor is introduced to deal with the disturbance such that the control precision is improvedFinally, a CSTR system is provided to demonstrate the effectiveness of the established control laws.

Keywords： H∞ reference tracking Nonlinear system State feedback control Time-varying delays Unified model

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Integrated design of legged mechatronic system

Chin-Yin CHEN, I-Ming CHEN, Chi-Cheng CHENG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 264-275 doi: 10.1007/s11465-009-0060-7

Abstract: This paper presents a system based on the integrated design and experiment for a one degree-of-freedomsymmetrical coupler point and pantograph into one, is designed, and common controllers are used to controlFor system-based dynamic optimization, the design for control (DFC) approach is used to integrate thestructure and control for improving dynamic performance with reduced control torque., controller design, and system implementation into the design and analytical software environment based

Keywords： integrated design design for control legged mechatronic system computer aided rapid system integration

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Design and evaluation of control strategies in urban drainage systems in Kunming city

Xin Dong, Senchen Huang, Siyu Zeng

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0968-9

Abstract: Real time control (RTC) of urban drainage systems (UDSs) is an important measure to reduce combined sewerApplication of RTC requires three main steps: strategy design, simulation-based evaluation and fieldBut many of published RTC studies are system-specific, lacking discussions on how to design a strategyTo fill these knowledge gaps, based on a case UDS in Kunming city, a study on RTC strategy design andTwo off-line volume-based RTC strategy design principles, and , are emphasized.

Keywords： Urban drainage system Real time control Static strategy Constant strategy Equal filling strategy