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学者姓名：闫维明
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Abstract ：
Multi-particle dampers (M-PD) can be potentially applied in civil engineering because of their good damping effect and wide frequency band. However, because of their complex nonlinear mechanical properties and the lack of a reasonable mechanical model, their development and application in practical engineering are limited. Therefore, without considering the accumulation of particles, an equivalent inertia single-particle mechanical model (EISM) is proposed by introducing an inerter to consider the effect of particle rolling on the damping mechanism and performance. Dynamic analyses of the EISM single degree of freedom system in the non-collision stage and the periodic motion after collision are performed based on the analytical solution. The influence of inertance on the frequency response curve of dynamic amplification factors in the no-collision stage and the analytical solution for the symmetric two-impacts-per-cycle motion are discussed in detail. Numerical simulations and experimental verification are conducted to verify the rationality of the above theoretical analysis. The results show that EISM can further clarify the nonlinear characteristics of M-PD. The inertance has a significant influence on the frequency response curve of the dynamic amplification factors as well as the boundary conditions and stability of the analytical solution of the symmetric two-impacts-per-cycle motion. The proposed EISM and the corresponding theoretical analysis in this study can theoretically support further analysis of the vibration reduction mechanism and design of M-PDs. © 2021 John Wiley & Sons, Ltd.
Keyword ：
Frequency response Frequency response Vibration analysis Vibration analysis Damping Damping Degrees of freedom (mechanics) Degrees of freedom (mechanics) Dynamic loads Dynamic loads
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| GB/T 7714 | Huang, Xu-hong , Xu, Wei-bing , Wang, Jin et al. Equivalent model of a multi-particle damper considering particle rolling and its analytical solution [J]. | Structural Control and Health Monitoring , 2021 , 28 (6) . |
| MLA | Huang, Xu-hong et al. "Equivalent model of a multi-particle damper considering particle rolling and its analytical solution" . | Structural Control and Health Monitoring 28 . 6 (2021) . |
| APA | Huang, Xu-hong , Xu, Wei-bing , Wang, Jin , Yan, Wei-ming , Chen, Yan-jiang . Equivalent model of a multi-particle damper considering particle rolling and its analytical solution . | Structural Control and Health Monitoring , 2021 , 28 (6) . |
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Abstract ：
A non-packed particle damper (NPPD) is an advantageous passive damping device with a wide frequency band and good robustness. However, its damping mechanism remains unclear, and its application for controlling vibrations in civil engineering structures is being explored. By analysing the particle motion state, this paper proposes a double inertia mass equivalent model (DIMEM) to reflect the interaction between particles. The effect of inertia was introduced in the DIMEM to consider the rolling effect of particles on the damping performance of the NPPD. An electromagnetic vibration table test of a single-storey frame structure with an NPPD was designed and performed. The parameter determination method and applicability of the DIMEM were also evaluated based on experimental and theoretical analyses. Furthermore, the effects of the parameters on the damping performance of the NPPD were systematically analysed. The results confirm that the equivalent model can reflect the damping performance and mechanism of the NPPD. The particle group inertia is an inherent property of the NPPD. With an increase in the ratio of inertance to particle mass, the optimal vibration damping performance deteriorates under harmonic excitation, and the corresponding equivalent connection stiffness gradually increases. The equivalent connection stiffness, additional mass ratio, recovery coefficient, and acceleration normalised collision distance significantly affect the damping performance and mechanism. However, the effects of the equivalent connection damping coefficient and rolling friction coefficient are negligible. The proposed DIMEM and the corresponding parameter analysis can provide an important reference for the application of NPPDs in civil engineering. © 2020
Keyword ：
Friction Friction Stiffness Stiffness Damping Damping
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| GB/T 7714 | Huang, Xu-hong , Xu, Wei-bing , Yan, Wei-ming et al. Equivalent model and parameter analysis of non-packed particle damper [J]. | Journal of Sound and Vibration , 2021 , 491 . |
| MLA | Huang, Xu-hong et al. "Equivalent model and parameter analysis of non-packed particle damper" . | Journal of Sound and Vibration 491 (2021) . |
| APA | Huang, Xu-hong , Xu, Wei-bing , Yan, Wei-ming , Wang, Jin . Equivalent model and parameter analysis of non-packed particle damper . | Journal of Sound and Vibration , 2021 , 491 . |
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Abstract ：
The seismic performance and design method of fabricated concrete bridge piers limit their applications in complex and harsh environments. In this study, a continuous bridge pier in an 8-degree seismic fortification intensity area was considered as a prototype. Two 1/3-scale models were designed and manufactured. The specimens were connected via a grouted sleeve connections (SFP) and a grouted sleeve prestressing tendon composite connections (SSFP), respectively. Moreover, a cast-in-place 1/3-scale model (reinforcement concrete pier, RCP) was designed as a comparison specimen. Quasi-static experiments were performed on these three specimens. The seismic performance of the specimens was analysed according to the failure phenomena, bearing capacity, displacement ductility, stiffness, energy-dissipation capacity, and residual deformation. On these basis, a bearing-capacity estimation method for SFP (including SSFP) was developed and validated. The results indicated that the damage to the SFP and SSFP mainly accumulated along the top and bottom of the sleeves. The plastic hinge area of the SFP and SSFP moved up or down. Thus, the damage to the SFP and SSFP was concentrated at the joints. Cracks first occurred at the seam of the two fabricated specimens when the loading drift was relatively small. Then, the concrete at the loading edge of the joints was crushed. Furthermore, the longitudinal bars yielded and broke. Finally, the specimens failed. Compared with the RCP, the SFP and the SSFP had larger yield and ultimate displacements. The bearing capacities of the RCP and the SFP were similar. However, the bearing capacity of the SSFP was significantly higher. The bearing capacities of the SFP and SSFP did not decrease significantly before the specimens failed. Compared with the RCP, the SFP had a lower initial stiffness, a lower stiffness degradation rate, similar displacement ductility, smaller residual displacement, and less cumulative energy dissipation. The SSFP was better than the SFP with regard to the displacement ductility, initial stiffness, and cumulative energy dissipation. Thus, the SFP and SSFP can satisfy the seismic requirements of high-intensity areas. The proposed bearing-capacity estimation method can be used for the seismic design and evaluation of SFPs and SSFPs.
Keyword ：
High-intensity area High-intensity area Pseudo-static test Pseudo-static test Bearing capacity Bearing capacity Grouted sleeve connections Grouted sleeve connections Fabricated pier Fabricated pier
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| GB/T 7714 | Xin, Guangtao , Xu, Weibing , Wang, Jin et al. Seismic performance of fabricated concrete piers with grouted sleeve joints and bearing-capacity estimation method [J]. | STRUCTURES , 2021 , 33 : 169-186 . |
| MLA | Xin, Guangtao et al. "Seismic performance of fabricated concrete piers with grouted sleeve joints and bearing-capacity estimation method" . | STRUCTURES 33 (2021) : 169-186 . |
| APA | Xin, Guangtao , Xu, Weibing , Wang, Jin , Yan, Xiaoyu , Chen, Yanjiang , Yan, Weiming et al. Seismic performance of fabricated concrete piers with grouted sleeve joints and bearing-capacity estimation method . | STRUCTURES , 2021 , 33 , 169-186 . |
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Abstract ：
针对调谐质量阻尼器(TMD)和颗粒阻尼器的减振特点及各自不足，提出将并联式单向单颗粒阻尼器(PSSPD)与TMD有机结合的复合减振技术方案—PSSPD与TMD并联体系。在深入剖析其减振特性的基础上，将颗粒与受控结构之间的碰撞力等效为脉冲力，建立复合减振体系力学模型和方程。采用时域和频域结合的方法并对模型进行分析并求解，使求解过程直接、无需求解微分方程且易于求解特殊激励形式动力响应。提出简谐激励下复合减振结构系统的最优减振参数设计方法，对该系统进行性能参数分析，验证了力学模型的精度及优化方法的可行性。建立该复合减振体系在地震动下的参数优化方法并对其合理性和准确性进行验证。最后，对PSSPD、TM...
Keyword ：
减振机理 减振机理 颗粒阻尼器 颗粒阻尼器 结构振动控制 结构振动控制 优化分析 优化分析 调谐质量阻尼器 调谐质量阻尼器
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| GB/T 7714 | 王宝顺 , 何浩祥 , 闫维明 . 质量调谐-颗粒阻尼器复合减振体系的力学解析及优化分析 [J]. | 工程力学 , 2021 , (06) : 191-208 . |
| MLA | 王宝顺 et al. "质量调谐-颗粒阻尼器复合减振体系的力学解析及优化分析" . | 工程力学 06 (2021) : 191-208 . |
| APA | 王宝顺 , 何浩祥 , 闫维明 . 质量调谐-颗粒阻尼器复合减振体系的力学解析及优化分析 . | 工程力学 , 2021 , (06) , 191-208 . |
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Abstract ：
桥梁伸缩装置(以下简称伸缩缝)使用环境恶劣、受荷形式复杂,易出现多种病害.伸缩缝病害会造成桥梁耐久性降低,车致桥梁动力响应加重等不利现象.因此,伸缩缝病害机理及其处置方法和考虑伸缩缝参数影响的车-桥耦合动力响应规律研究受到了广泛关注.本文综述了桥梁伸缩缝力学性能,常见病害及其影响,病害机理及其处置方法等的发展现状;重点讨论了考虑伸缩缝参数及其变化影响的桥梁动力响应的研究进展及存在的问题;展望了未来桥梁伸缩缝研究中有待解决的关键问题.
Keyword ：
病害 病害 伸缩缝 伸缩缝 车-桥耦合振动 车-桥耦合振动 动力响应 动力响应 结构韧性 结构韧性
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| GB/T 7714 | 肖波 , 许维炳 , 闫晓宇 et al. 公路桥面伸缩装置及其对桥梁静动力性能影响综述 [J]. | 防灾减灾工程学报 , 2021 , 41 (1) : 167-180 . |
| MLA | 肖波 et al. "公路桥面伸缩装置及其对桥梁静动力性能影响综述" . | 防灾减灾工程学报 41 . 1 (2021) : 167-180 . |
| APA | 肖波 , 许维炳 , 闫晓宇 , 闫维明 , 陈彦江 , 王瑾 et al. 公路桥面伸缩装置及其对桥梁静动力性能影响综述 . | 防灾减灾工程学报 , 2021 , 41 (1) , 167-180 . |
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Abstract ：
滚动碰撞式调制质量阻尼器(PTRMD)由调谐质量阻尼器及颗粒阻尼器发展而来,其在土木工程减振控制领域中的研究仍处于初步分析与探索阶段,阻尼器自身参数及外部激励条件对其减振性能的影响尚不明确。在考虑颗粒与主体结构碰撞和摩擦效应的基础上,建立PTRMD力学模型,并将颗粒和结构的振动过程划分为非碰撞过程、碰撞过程及黏滞振动过程;建立PTRMD-单自由度结构运动微分方程并分别对其进行求解;基于数值仿真分析方法,分别对碰撞间隙比、颗粒运动频率比、滚动摩擦因数、碰撞恢复系数、颗粒质量与简谐激励强度及频率等参数对PTRMD减振性能的影响进行研究。结果表明:颗粒运动频率比较小时,PTRMD减振效果随碰撞间隙比...
Keyword ：
滚动碰撞式调制质量阻尼器(PTRMD) 滚动碰撞式调制质量阻尼器(PTRMD) 振动控制 振动控制 减振机理 减振机理 参数分析 参数分析 碰撞 碰撞
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| GB/T 7714 | 黄绪宏 , 闫维明 , 许维炳 et al. 滚动碰撞式调制质量阻尼器力学模型及参数分析 [J]. | 振动与冲击 , 2021 , 40 (08) : 179-186 . |
| MLA | 黄绪宏 et al. "滚动碰撞式调制质量阻尼器力学模型及参数分析" . | 振动与冲击 40 . 08 (2021) : 179-186 . |
| APA | 黄绪宏 , 闫维明 , 许维炳 , 王宝顺 . 滚动碰撞式调制质量阻尼器力学模型及参数分析 . | 振动与冲击 , 2021 , 40 (08) , 179-186 . |
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Abstract ：
颗粒阻尼技术因减振效果好、作用频带宽等优点使其在土木工程领域中具有良好的应用前景,然而因其具有高度复杂的非线性力学特性,并缺少合理的力学模型,限制了其在实际工程中的应用和发展。鉴于此,以土木工程应用为背景,在不考虑阻尼颗粒发生堆积的前提下,通过引入惯容器来考虑颗粒群滚动对阻尼器减振机理及减振效果影响,建立了考虑惯容的多颗粒阻尼器等效单颗粒力学模型;结合颗粒运动状态,分别进行了未碰撞时及碰撞发生后多颗粒阻尼器单自由度结构的响应分析,重点探讨了惯容系数对未碰撞时动力放大系数频响曲线及碰撞发生后周期2次碰撞稳态解析解的影响规律,并采用数值仿真和试验方法进行验证。结果表明,考虑惯容属性后等效模型能够进...
Keyword ：
惯容 惯容 周期运动 周期运动 多颗粒阻尼器 多颗粒阻尼器 稳定性 稳定性 等效模型 等效模型
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| GB/T 7714 | 黄绪宏 , 许维炳 , 王瑾 et al. 考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究 [J]. | 工程力学 , 2021 , 38 (04) : 136-149 . |
| MLA | 黄绪宏 et al. "考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究" . | 工程力学 38 . 04 (2021) : 136-149 . |
| APA | 黄绪宏 , 许维炳 , 王瑾 , 闫维明 , 陈彦江 . 考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究 . | 工程力学 , 2021 , 38 (04) , 136-149 . |
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Abstract ：
为探究铅阻尼器对基于自攻螺钉连接的冷弯薄壁型钢整体结构减震性能的影响及可行性,在分析单片墙体低周往复荷载试验结果的基础上,提出能够准确反映墙体滞回性能的冷弯薄壁型钢墙体和整体结构的有限元模型建立方法。提出采用基于刚度的时变损伤指数、基于弹塑性耗能差的时变损伤指数和时变延性系数对冷弯薄壁型钢整体结构进行深入的损伤演变分析通过对冷弯薄壁型钢整体结构的动力时程分析和损伤分析。建立典型冷弯薄壁型钢办公楼结构,并进行动力时程分析,研究不同地震幅值下冷弯薄壁型钢整体结构的减震效果。结果表明:铅阻尼器不仅能够明显改善单片剪力墙的力学性能和抗震性能,还可以显著降低大震下冷弯薄壁型钢整体结构的动力反应及损伤程度...
Keyword ：
减震控制 减震控制 冷弯薄壁型钢 冷弯薄壁型钢 铅阻尼器 铅阻尼器 损伤评估 损伤评估 自攻螺钉 自攻螺钉
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| GB/T 7714 | 王曼 , 何浩祥 , 王宝顺 et al. 含铅阻尼器的自攻螺钉冷弯型钢整体结构减震性能及损伤演变 [J]. | 振动与冲击 , 2021 , 40 (21) : 266-274 . |
| MLA | 王曼 et al. "含铅阻尼器的自攻螺钉冷弯型钢整体结构减震性能及损伤演变" . | 振动与冲击 40 . 21 (2021) : 266-274 . |
| APA | 王曼 , 何浩祥 , 王宝顺 , 闫维明 . 含铅阻尼器的自攻螺钉冷弯型钢整体结构减震性能及损伤演变 . | 振动与冲击 , 2021 , 40 (21) , 266-274 . |
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Abstract ：
A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs. In this study, a DTMD parameter optimisation method was proposed, with the objective of minimising the peak displacement response of a first N-order vibration modal with a vibration mass participation factor of 85%. Then, a scale model of a high-rise structure was fabricated, along with a corresponding DTMD. Different types of excitations were chosen to clarify the dynamic responses of the model with and without the DTMD, including Site-II ground motions, long-period (LP) ground motions without pulses, and near-fault pulse-type (NFPT) ground motions. The results indicate that the dynamic responses of high-rise structures under LP and NFPT ground motions are much greater than those under Site-II ground motions. The DTMD can effectively reduce the absolute displacement response, acceleration response, and strain response at the top floor of the test model. However, the DTMD has a time delay in providing the damping effect. A smaller damping ratio between the upper TMD and the controlled structure will lead to a more significant damping effect for the DTMD.
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| GB/T 7714 | Shen, Botan , Wang, Jin , Xu, Weibing et al. Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure [J]. | SHOCK AND VIBRATION , 2021 , 2021 . |
| MLA | Shen, Botan et al. "Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure" . | SHOCK AND VIBRATION 2021 (2021) . |
| APA | Shen, Botan , Wang, Jin , Xu, Weibing , Chen, Yanjiang , Yan, Weiming , Huang, Jianhui et al. Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure . | SHOCK AND VIBRATION , 2021 , 2021 . |
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Abstract ：
考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究
Keyword ：
周期运动 周期运动 等效模型 等效模型 惯容 惯容 稳定性 稳定性 多颗粒阻尼器 多颗粒阻尼器
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| GB/T 7714 | 黄绪宏 , 许维炳 , 王瑾 et al. 考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究 [J]. | 黄绪宏 , 2021 , 38 (4) : 136-149 . |
| MLA | 黄绪宏 et al. "考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究" . | 黄绪宏 38 . 4 (2021) : 136-149 . |
| APA | 黄绪宏 , 许维炳 , 王瑾 , 闫维明 , 陈彦江 , 工程力学 . 考虑惯容的颗粒阻尼器等效力学模型及其受控结构稳态解研究 . | 黄绪宏 , 2021 , 38 (4) , 136-149 . |
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