您的检索：
学者姓名：闫维明
精炼检索结果：
年份
成果类型
收录类型
来源
综合
合作者
语言
清除所有精炼条件
摘要 ：
公路桥面伸缩装置及其对桥梁静动力性能影响综述
关键词 ：
伸缩缝 伸缩缝 动力响应 动力响应 病害 病害 结构韧性 结构韧性 车-桥耦合振动 车-桥耦合振动
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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]. | 肖波 , 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" . | 肖波 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 . | 肖波 , 2021 , 41 (1) , 167-180 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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
关键词 ：
周期运动 周期运动 多颗粒阻尼器 多颗粒阻尼器 惯容 惯容 稳定性 稳定性 等效模型 等效模型
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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...
关键词 ：
周期运动 周期运动 多颗粒阻尼器 多颗粒阻尼器 惯容 惯容 稳定性 稳定性 等效模型 等效模型
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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...
关键词 ：
减振机理 减振机理 参数分析 参数分析 振动控制 振动控制 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) 碰撞 碰撞
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
滚动碰撞式调制质量阻尼器力学模型及参数分析
关键词 ：
减振机理 减振机理 参数分析 参数分析 振动控制 振动控制 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) 碰撞 碰撞
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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]. | 黄绪宏 , 2021 , 40 (8) : 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" . | 黄绪宏 40 . 8 (2021) : 179-186 . |
| APA | 黄绪宏 , 闫维明 , 许维炳 , 王宝顺 , 振动与冲击 . 滚动碰撞式调制质量阻尼器力学模型及参数分析 . | 黄绪宏 , 2021 , 40 (8) , 179-186 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Particle dampers have good performance of vibration control and noise reduction, and they have been widely studied and applied in the field of high-frequency vibration control, such as aviation and mechanical engineering. However, the vibration characteristics of civil engineering structures are usually low frequency and low amplitude, which restricts the performance of particle dampers. A new type of particle damper, namely the multiple unidirectional single-particle damper (MUSPD), is advanced based on the comparative analysis of the construction characteristics, damping performance, and damping mechanism of a single-particle damper and multiparticle damper. Based on the analysis of the damping mechanism of MUSPD and the integral consideration of the stress state of particles, the mechanical model of MUSPD is established, and an efficient numerical calculation method with variable step size is proposed. For harmonic excitation, the relationship between the optimal motion distance of a particle and other parameters is established by theoretical analysis. In addition, the optimization analysis method of MUSPD subjected to ground motions is proposed, and the rationality and accuracy are all verified. The results show that MUSPD has a better damping effect than a classical particle damper. Because the MUSPD belongs to acceleration (force)-related dampers, the energy of the controlled structure will be transferred as long as the particles collide with the controlled structure, and the frequency richness and randomness of the ground motion spectrum enhance the probability of particles colliding with the controlled structure. Moreover, the site effect has no obvious influence on the damping effect of MUSPD, and it is more suitable for middle- and low-rise structures.
关键词 ：
Structure control Structure control Damping mechanism Damping mechanism Collision Collision Optimal collision distance Optimal collision distance Seismic control Seismic control Particle damper Particle damper
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | He, Haoxiang , Wang, Baoshun , Yan, Weiming . Mechanical Model and Optimization Analysis of Multiple Unidirectional Single-Particle Damper [J]. | JOURNAL OF ENGINEERING MECHANICS , 2021 , 147 (7) . |
| MLA | He, Haoxiang et al. "Mechanical Model and Optimization Analysis of Multiple Unidirectional Single-Particle Damper" . | JOURNAL OF ENGINEERING MECHANICS 147 . 7 (2021) . |
| APA | He, Haoxiang , Wang, Baoshun , Yan, Weiming . Mechanical Model and Optimization Analysis of Multiple Unidirectional Single-Particle Damper . | JOURNAL OF ENGINEERING MECHANICS , 2021 , 147 (7) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
This study developed a special energy dissipation X-bracing for cold-formed steel (CFS) shear walls to improve the ductility of the corrugated steel sheathing. In previous research, CFS shear walls with corrugated sheathing demonstrated poor ductility under cyclic loading. The paper presents a potential solution by adding a special energy dissipation bracing (EDB) to improve the ductility of the corrugated sheet-sheathed shear walls. The EDB can be tuned according to the CFS shear wall base performance to achieve the highest postpeak deflection capacity, thereby significantly improving the seismic ductility. To prove the concept and analyze the feasibility of the new EDB, a test program of nine full-scale shear walls was conducted. The experimental results showed that with the tuned EDB, the corrugated steel sheet-sheathed shear walls had improved ductility with no considerable reduction in the initial stiffness and shear strength. Installing the proposed EDB can be an efficient approach to enhance the seismic performance of CFS-framed shear walls. Details of the test program and discussion are presented.
关键词 ：
Experimental investigation Experimental investigation Shear walls Shear walls Cold-formed steel (CFS) Cold-formed steel (CFS) Metal and composite structures Metal and composite structures Energy dissipation bracing (EDB) Energy dissipation bracing (EDB) Mechanical Model Mechanical Model
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Yu, Cheng , Tian, Yu , Yan, Weiming et al. Novel Energy Dissipation Bracing Designed for Corrugated Sheet-Sheathed Cold-Formed Steel Shear Wall [J]. | JOURNAL OF STRUCTURAL ENGINEERING , 2021 , 147 (11) . |
| MLA | Yu, Cheng et al. "Novel Energy Dissipation Bracing Designed for Corrugated Sheet-Sheathed Cold-Formed Steel Shear Wall" . | JOURNAL OF STRUCTURAL ENGINEERING 147 . 11 (2021) . |
| APA | Yu, Cheng , Tian, Yu , Yan, Weiming , Zhang, Wenying . Novel Energy Dissipation Bracing Designed for Corrugated Sheet-Sheathed Cold-Formed Steel Shear Wall . | JOURNAL OF STRUCTURAL ENGINEERING , 2021 , 147 (11) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
在现有多颗粒阻尼器(M-PD)等效单颗粒力学模型研究基础上,通过引入惯容考虑颗粒群滚动对M-PD减振效果的影响,建立了考虑惯容的等效惯性单颗粒模型(EISM),并基于Runge-Kutta算法建立了简谐激励及地震激励下M-PD单自由度结构运动状态的完整求解算法.设计进行了M-PD控制下的单层钢框架振动台试验,探究了不同颗粒填充率对结构顶层位移频响曲线的影响,提出了非堆积状态下EISM参数取值原则,进而进行了EISM模型的试验验证及基于既有等效单颗粒模型的数值对比分析;在模型验证的基础上,基于EISM进行了自由振动、简谐激励及地震作用下减振效果分析及能量变化规律分析.模型验证及减振效果分析结果表明:相比较于现有等效单颗粒力学模型,EISM模型能够进一步反映M-PD减振效果及减振机理,且提出的模型参数取值原则更加适应于非堆积状态下的M-PD数值模拟;不同激励情况下M-PD均具有较好的减振效果,但在最优碰撞间距取值下现有等效单颗粒模型可能会高估M-PD减振效果.
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 黄绪宏 , 许维炳 , 王瑾 et al. 考虑惯容的多颗粒阻尼器等效力学模型及试验验证 [J]. | 振动与冲击 , 2021 , 40 (18) : 102-111 . |
| MLA | 黄绪宏 et al. "考虑惯容的多颗粒阻尼器等效力学模型及试验验证" . | 振动与冲击 40 . 18 (2021) : 102-111 . |
| APA | 黄绪宏 , 许维炳 , 王瑾 , 闫维明 , 陈彦江 . 考虑惯容的多颗粒阻尼器等效力学模型及试验验证 . | 振动与冲击 , 2021 , 40 (18) , 102-111 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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.
关键词 ：
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
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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.
关键词 ：
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
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| 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 . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
