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学者姓名：邓丽琼
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Abstract ：
In recent years, the magnetorheological (MR) fluid damper-based semiactive control systems have received considerable attention for protecting structures against natural hazards such as strong earthquakes and high winds. In this paper, an improved modal controller integrated with a Kalman-filter observer is proposed for vibration control of spatial structures. The proposed modal controller can reduce the dimension of the control equation and thus can relieve the calculation burden greatly. In the proposed control system, a Kalman-filter observer, which estimates the full controlled modal states from local accelerometer outputs, is designed for rendering the controller to be more applicable to real spatial structures with a large number of degrees of freedom (DOFs). A numerical example of a lattice roof structure installed with MR dampers is presented. The effectiveness of the controller is evaluated under both Tianjin and El Centro earthquake excitations. The simulation results demonstrate not only its effectiveness of reducing vibration of spatial structure, but also its adaptability for versatile loading conditions.
Keyword ：
Kalman-filter Kalman-filter magnetorheological (MR) damper magnetorheological (MR) damper modal control modal control semiactive control semiactive control spatial structure spatial structure
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| GB/T 7714 | Lin, Wei , Chen, Shanghong , Deng, Liqiong . LQG Modal Control on Spatial Structures Using MR Damper [C] . 2011 : 2451-2454 . |
| MLA | Lin, Wei 等. "LQG Modal Control on Spatial Structures Using MR Damper" . (2011) : 2451-2454 . |
| APA | Lin, Wei , Chen, Shanghong , Deng, Liqiong . LQG Modal Control on Spatial Structures Using MR Damper . (2011) : 2451-2454 . |
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Abstract ：
On the basis of laminated plate theory and piezoelectric theory, the nonlinear free vibration governing equations for symmetric cross-ply moderately thick laminated piezoelectric plates are established. The Galerkin procedure furnishes an infinite system of equations for time functions which are solved by the method of harmonic balance. In the numerical results, the influences of piezoelectric effect and various location of piezoelectric layer on the nonlinear vibrating frequency of the laminated piezoelectric plates are discussed.
Keyword ：
amplitude-frequency amplitude-frequency laminated plate laminated plate moderately thick moderately thick piezoelectric effect piezoelectric effect
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| GB/T 7714 | Zheng, Yufang , Deng, Liqiong . Effect of Piezoelectricity on Nonlinear Free Vibration of Moderately Thick Laminated Piezoelectric Plates [C] . 2011 : 1223-1226 . |
| MLA | Zheng, Yufang 等. "Effect of Piezoelectricity on Nonlinear Free Vibration of Moderately Thick Laminated Piezoelectric Plates" . (2011) : 1223-1226 . |
| APA | Zheng, Yufang , Deng, Liqiong . Effect of Piezoelectricity on Nonlinear Free Vibration of Moderately Thick Laminated Piezoelectric Plates . (2011) : 1223-1226 . |
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Abstract ：
This paper investigates bifurcation and chaos of cross-ply laminated plates with piezoelectric actuators under a transverse periodic excitation. On the basis of the Von Karman plate theory and piezoelectric theory, the nonlinear governing equations for cross-ply laminated plates with piezoelectric actuators are established. The Galerkin procedure is applied to truncate the governing equations into a set of ordinary differential equations. By employing the modern methods in nonlinear dynamics, the influences of external loading amplitude, excitation voltage and actuator thickness on the bifurcation and chaos of the plates are discussed qualitatively. We are mainly concerned with tracing the bifurcation diagram and identifying the periodic motions, multiple periodic motions or chaotic motions.
Keyword ：
Bifurcation and chaos Bifurcation and chaos Laminated plates Laminated plates Nonlinearity Nonlinearity Piezoelectric actuator Piezoelectric actuator
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| GB/T 7714 | Zheng, Y. F. , Deng, L. Q. , Wang, F. . Bifurcation and Chaos of Cross-ply Laminated Plates with Piezoelectric Actuators [J]. | ADVANCES IN VIBRATION ENGINEERING , 2011 , 10 (4) : 305-312 . |
| MLA | Zheng, Y. F. 等. "Bifurcation and Chaos of Cross-ply Laminated Plates with Piezoelectric Actuators" . | ADVANCES IN VIBRATION ENGINEERING 10 . 4 (2011) : 305-312 . |
| APA | Zheng, Y. F. , Deng, L. Q. , Wang, F. . Bifurcation and Chaos of Cross-ply Laminated Plates with Piezoelectric Actuators . | ADVANCES IN VIBRATION ENGINEERING , 2011 , 10 (4) , 305-312 . |
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Abstract ：
The nonlinear free vibration for viscoelastic cross-ply moderately thick laminated composite plates under considering transverse shear deformation and damage effect is investigated. Based on the Timoshenko-Mindlin theory, strain-equivalence hypothesis, and Boltzmann superposition principle, the nonlinear free vibration governing equations for viscoelastic moderately thick laminated plates with damage are established and solved by the Galerkin method, Simpson integration, Newton-Cotes, Newmark, and iterative methods. In the numerical results, the effects of transverse shear, material viscoelasticity, span-thickness ratio, aspect ratio, and damage effect on the nonlinear free vibrating frequency of the viscoelastic cross-ply moderately thick laminated plates are discussed.
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| GB/T 7714 | Zheng, Y. F. , Deng, L. Q. . Nonlinear Free Vibration for Viscoelastic Moderately Thick Laminated Composite Plates with Damage Evolution [J]. | MATHEMATICAL PROBLEMS IN ENGINEERING , 2010 , 2010 . |
| MLA | Zheng, Y. F. 等. "Nonlinear Free Vibration for Viscoelastic Moderately Thick Laminated Composite Plates with Damage Evolution" . | MATHEMATICAL PROBLEMS IN ENGINEERING 2010 (2010) . |
| APA | Zheng, Y. F. , Deng, L. Q. . Nonlinear Free Vibration for Viscoelastic Moderately Thick Laminated Composite Plates with Damage Evolution . | MATHEMATICAL PROBLEMS IN ENGINEERING , 2010 , 2010 . |
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Abstract ：
针对整体式桥台的曲线箱梁固有的力学特性,建立有限元模型,对在不同荷载作用下剪滞系数的横向和纵向分布规律进行研究,并将结果与普通简支曲线箱梁进行比较.通过有机玻璃模型试验验证了有限元建模分析的可行性、准确性,同时做了参数分析,提出了供工程设计参考的实用剪滞系数计算图表.分析结果表明:该类箱梁剪滞分布与普通简支曲线箱梁的不同,主要在于剪滞系数内侧大而外侧小,以及在桥台附近截面出现了负剪滞现象;整体式桥台的等代桩长、桥台纵向抗弯刚度、宽跨比及箱梁肋板间距等,是影响该类桥梁剪滞系数的主要因素.
Keyword ：
剪滞效应 剪滞效应 实用图表 实用图表 整体式桥台 整体式桥台 曲线箱梁 曲线箱梁 有限元法 有限元法 桥梁 桥梁 模型试验 模型试验
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| GB/T 7714 | 彭大文 , 林志平 , 邓丽琼 et al. 整体式桥台的曲线箱梁剪滞效应研究 [J]. | 公路 , 2006 , (12) : 9-14 . |
| MLA | 彭大文 et al. "整体式桥台的曲线箱梁剪滞效应研究" . | 公路 12 (2006) : 9-14 . |
| APA | 彭大文 , 林志平 , 邓丽琼 , 许晟 . 整体式桥台的曲线箱梁剪滞效应研究 . | 公路 , 2006 , (12) , 9-14 . |
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Abstract ：
本文利用伯势利多项式展开为偶调和三角级数，欧拉多项式展开为奇调和三角级数。假定矩形薄板的挠度由包含待定系数、部分满足边界条件的重三角级数构成。运用薄板的抚曲微分方程和边界条件，求出薄板挠度方程中的待定系数人而求出薄板的挠度和内力。文中的算例证实了该方法的可行性与精确度。
Keyword ：
三角级数 三角级数 伯努利多项式 伯努利多项式 欧拉多项式 欧拉多项式 薄板弯曲 薄板弯曲
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| GB/T 7714 | 邓丽琼 . 用伯努利多项式和欧拉多项式求解矩形薄板弯曲问题 [J]. | 福建建筑 , 1999 , (01) : 13-15 . |
| MLA | 邓丽琼 . "用伯努利多项式和欧拉多项式求解矩形薄板弯曲问题" . | 福建建筑 01 (1999) : 13-15 . |
| APA | 邓丽琼 . 用伯努利多项式和欧拉多项式求解矩形薄板弯曲问题 . | 福建建筑 , 1999 , (01) , 13-15 . |
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Abstract ：
采用更精确地反映弹性结构边界上的面力分量和位移分量的三结点二次边界单元法求解弹性结构在边界上的位移和面力.进而求解结构内部点的位移和内力,算例证实了该方法的精确度.
Keyword ：
二次边界单元 二次边界单元 内力 内力 弹性结构 弹性结构
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| GB/T 7714 | 邓丽琼 . 用二次边界单元法计算弹性结构的内力 [J]. | 福州大学学报（自然科学版） , 1999 , 27 (6) : 71-74 . |
| MLA | 邓丽琼 . "用二次边界单元法计算弹性结构的内力" . | 福州大学学报（自然科学版） 27 . 6 (1999) : 71-74 . |
| APA | 邓丽琼 . 用二次边界单元法计算弹性结构的内力 . | 福州大学学报（自然科学版） , 1999 , 27 (6) , 71-74 . |
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用与时间无关的Kelvin问题的基本解,作为加权函数的边界单元法求解弹性结构的动力响应.选用一组线性无关的坐标函数来近似域内点的位移,使惯性项的域积分转化为边界积分,把复杂的结构动力响应问题转化为边界上求解二阶线性常微分方程组的问题.利用Houbolt直接积分方法对时域进行离散,由初始条件逐步求出一系列离散时刻弹性结构的动力响应.文中的算例证实了该方法的可行性与精确度.
Keyword ：
动力响应 动力响应 弹性结构 弹性结构 边界单元法 边界单元法
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| GB/T 7714 | 邓丽琼 . 用边界单元法求解弹性结构的动力响应 [J]. | 福州大学学报（自然科学版） , 1999 , 27 (3) : 58-61 . |
| MLA | 邓丽琼 . "用边界单元法求解弹性结构的动力响应" . | 福州大学学报（自然科学版） 27 . 3 (1999) : 58-61 . |
| APA | 邓丽琼 . 用边界单元法求解弹性结构的动力响应 . | 福州大学学报（自然科学版） , 1999 , 27 (3) , 58-61 . |
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Keyword ：
结构 结构 自振频率 自振频率 质量矩阵 质量矩阵 边界元 边界元 静力基本解 静力基本解
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| GB/T 7714 | 邓丽琼 . 静力基本解边界单元法求解二维弹性结构的自振频率 [J]. | 工程力学 , 1998 , 000 (A01) : 433-438 . |
| MLA | 邓丽琼 . "静力基本解边界单元法求解二维弹性结构的自振频率" . | 工程力学 000 . A01 (1998) : 433-438 . |
| APA | 邓丽琼 . 静力基本解边界单元法求解二维弹性结构的自振频率 . | 工程力学 , 1998 , 000 (A01) , 433-438 . |
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Keyword ：
傅里叶级数 傅里叶级数 欧拉多项式 欧拉多项式 结构力学 结构力学
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| GB/T 7714 | 邓丽琼 . 用欧拉多项式的傅里叶级数求解结构力学问题 [J]. | 工程力学 , 1998 , 000 (A01) : 439-443 . |
| MLA | 邓丽琼 . "用欧拉多项式的傅里叶级数求解结构力学问题" . | 工程力学 000 . A01 (1998) : 439-443 . |
| APA | 邓丽琼 . 用欧拉多项式的傅里叶级数求解结构力学问题 . | 工程力学 , 1998 , 000 (A01) , 439-443 . |
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