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Model validation for structural dynamics in the aero-engine design process
Chaoping ZANG, D. J. EWINS,
《能源前沿(英文)》 2009年 第3卷 第4期 页码 480-488 doi: 10.1007/s11708-009-0043-8
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0758-y
关键词: nodal line topology optimization structural dynamics design material-field series-expansion
Estimation of optimum design of structural systems via machine learning
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1441-1452 doi: 10.1007/s11709-021-0774-0
关键词: optimization metaheuristic algorithms harmony search structural designs machine learning artificial neural networks
Effects of green roof damping and configuration on structural seismic response
《结构与土木工程前沿(英文)》 页码 1133-1144 doi: 10.1007/s11709-023-0959-9
关键词: green infrastructure green roof structural resilience seismic design
Yongliang YUAN, Liye LV, Shuo WANG, Xueguan SONG
《机械工程前沿(英文)》 2020年 第15卷 第3期 页码 406-416 doi: 10.1007/s11465-019-0578-2
关键词: bucket wheel reclaimer co-design energy-minimum optimization sequential strategy
Dynamics of structural systems with various frequency-dependent damping models
Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING
《机械工程前沿(英文)》 2015年 第10卷 第1期 页码 48-63 doi: 10.1007/s11465-015-0330-5
The aim of this paper is to present the dynamic analyses of the system involving various damping models. The assumed frequency-dependent damping forces depend on the past history of motion via convolution integrals over some damping kernel functions. By choosing suitable damping kernel functions of frequency-dependent damping model, it may be derived from the familiar viscoelastic materials. A brief review of literature on the choice of available damping models is presented. Both the mode superposition method and Fourier transform method are developed for calculating the dynamic response of the structural systems with various damping models. It is shown that in the case of non-deficient systems with various damping models, the modal analysis with repeated eigenvalues are very similar to the traditional modal analysis used in undamped or viscously damped systems. Also, based on the pseudo-force approach, we transform the original equations of motion with nonzero initial conditions into an equivalent one with zero initial conditions and therefore present a Fourier transform method for the dynamics of structural systems with various damping models. Finally, some case studies are used to show the application and effectiveness of the derived formulas.
关键词: damping viscoelasticity dynamic analysis mode superposition method Fourier transform method
Structural optimal design of a swing vane compressor
Junjie MA,Xiang CHEN,Zongchang QU
《能源前沿(英文)》 2019年 第13卷 第4期 页码 764-769 doi: 10.1007/s11708-016-0449-z
Finite element analysis and structural design of pretensioned inverted T-beams with web openings
Hock Tian CHENG, Bashar S. MOHAMMED, Kamal Nasharuddin MUSTAPHA
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 148-157 doi: 10.1007/s11709-009-0030-5
金伟良,钟小平
《中国工程科学》 2012年 第14卷 第3期 页码 100-107
以结构全寿命周期为研究时域,运用结构全寿命设计的新理念,构架了工程结构全寿命设计的目标体系,并从目标体系出发,结合工程结构的特点,分析了设计中结构性能、成本、使用寿命的内涵及相互关系。在综合众多影响因素的基础上构建了工程结构全寿命周期设计理论的研究框架,确定了工程结构性能指标、经济指标及时间指标在全寿命设计理论体系中的核心地位,提出了基于性能设计的耐久性极限状态设计新理念,并分析了性能极限状态所具有的特点。
刘志强,李娜,冯良平,张革军
《中国工程科学》 2010年 第12卷 第7期 页码 96-100
研究了西堠门大桥结构监测系统的设计原则,阐述桥梁结构监测系统的传感器子系统、数据采集与传输子系统、数据管理子系统以及结构状态识别与综合评估子系统的设计方法和功能要求。
Jiaxin HE; Shaohui HE; Xiabing LIU; Jinlei ZHENG
《结构与土木工程前沿(英文)》 2022年 第16卷 第6期 页码 685-703 doi: 10.1007/s11709-022-0824-2
关键词: double tunnels super-span structural design mechanical response numerical simulation field monitoring
Strength reduction factors for structural rubbercrete
Bashar S. MOHAMMED,N. J. AZMI
《结构与土木工程前沿(英文)》 2014年 第8卷 第3期 页码 270-281 doi: 10.1007/s11709-014-0265-7
关键词: crumb rubber recycled tire mix design reduction factor strength modulus elasticity
Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth
Guozhen CHEN, Pinkuan LIU, Han DING
《机械工程前沿(英文)》 2020年 第15卷 第1期 页码 55-65 doi: 10.1007/s11465-019-0545-y
关键词: fast-steering mirror structural parameter PI controller bandwidth notch filter
Chengyuan LIANG, Fang YUAN, Xuedong CHEN, Wei JIANG, Lizhan ZENG, Xin LUO
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 255-272 doi: 10.1007/s11465-019-0538-x
关键词: nano-precision positioning stage analysis and design structural and dynamic parameters dynamic accuracy systematic modeling
Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics
Zongxia JIAO,Tianyi WANG,Liang YAN
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 351-362 doi: 10.1007/s11465-016-0407-9
A linear oscillating motor is an electromagnetic actuator that can achieve short-stroke reciprocating movement directly without auxiliary transmission mechanisms. It has been widely used in linear pump applications as the source of power and motion. However, because of the demand of high power density in a linear actuation system, the performance of linear oscillating motors has been the focus of studies and deserves further research for high power density. In this paper, a general framework of linear oscillating motor design and optimization is addressed in detail, including the electromagnetic, dynamics, and thermal aspects. First, the electromagnetic and dynamics characteristics are modeled to reveal the principle for optimization. Then, optimization and analysis on magnetic structure, resonant system, and thermal features are conducted, which provide the foundation for prototype development. Finally, experimental results are provided for validation. As a whole, this process offers complete guidance for high power density linear oscillating motors in linear pump applications.
关键词: linear oscillating motor linear pump magnetic field motor optimization
标题 作者 时间 类型 操作
Model validation for structural dynamics in the aero-engine design process
Chaoping ZANG, D. J. EWINS,
期刊论文
Achieving desired nodal lines in freely vibrating structures via material-field series-expansion topology optimization
期刊论文
Multidisciplinary co-design optimization of structural and control parameters for bucket wheel reclaimer
Yongliang YUAN, Liye LV, Shuo WANG, Xueguan SONG
期刊论文
Dynamics of structural systems with various frequency-dependent damping models
Li LI,Yujin HU,Weiming DENG,Lei LÜ,Zhe DING
期刊论文
Finite element analysis and structural design of pretensioned inverted T-beams with web openings
Hock Tian CHENG, Bashar S. MOHAMMED, Kamal Nasharuddin MUSTAPHA
期刊论文
Structural design and mechanical responses of closely spaced super-span double tunnels in strongly weathered
Jiaxin HE; Shaohui HE; Xiabing LIU; Jinlei ZHENG
期刊论文
Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth
Guozhen CHEN, Pinkuan LIU, Han DING
期刊论文
Comprehensive analysis of the influence of structural and dynamic parameters on the accuracy of nano-precision
Chengyuan LIANG, Fang YUAN, Xuedong CHEN, Wei JIANG, Lizhan ZENG, Xin LUO
期刊论文