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工业厂房由于人员行走、设备振动等原因,通常采用低层形式。但对于高速建设的中国城市而言,提高产业用地的立体空间利用率已经成为了共识,越来越多的高层工业厂房拔地而起,“摩天工厂”应运而生。而对于高层工业厂房,振动舒适度的研究就显得更为重要。以实际正在施工的高层工业厂房为背景,采用理论分析、现场实测及有限元模拟三种方法,分析高层工业厂房在人行荷载下的楼板振动峰值加速度,通过理论分析、现场实测结果与有限元模拟结果对照,验证有限元模型的准确性;根据现场实测结果并结合有限元模拟结果 ...
陆万柱 +5 more
doaj
Finite element simulation of rotary blanking based on a modified GTN damage model [PDF]
Based on the GTN model,a modified GTN model applicable to compressive stress conditions was established by considering the effect of microvoid shear deformation on the loss of load-carrying capacity. The elastic-plastic constitutive model with the damage
HAN Jing-tao +3 more
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为了充分发挥谱元法和有限差分法各自在数值模拟复杂介质中地震波传播的优点,同时避免各自缺点,本文提出了模拟地震波传播的谱元-有限差分(SEM-FDM)混合方法。该混合方法在起伏地形附近采用谱元法计算地表附近的地震波传播;在远离起伏地形的区域之下,采用有限差分法计算地震波传播;之后通过构建数据交换区实现两种方法的耦合。结果表明,本文提出的谱元-有限差分混合方法能有效地模拟任意非均匀介质中的地震波传播,具有刻画复杂地形的能力,能处理自由地表边界条件,且能适应模型内的速度间断面。通过模型试算,并与谱元法进行对比,
Changzhi Xu +6 more
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Prediction of thermal conductivity of 93W–Ni–Fe alloys in sintering process based on finite element analysis [PDF]
Thermal conductivity is an important thermophysical parameter required for the numerical simulation of constitutive equations. The existing thermal conductivity measurement equipment and methods cannot measure the thermal conductivity of refractory ...
PAN Qian +6 more
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Research on the Penetration of Spudcan Foundation for Mobile Jack-Up Platform [PDF]
[Introduction] The spudcan foundation is the key structure of the mobile jack-up platform, which displaces surrounding soil during its penetrating installation.
Bo LIU, Donghua LIU, Zehua PAN
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Micro/Nanoelectrodes technique and Its Applications in Surface diffusion [PDF]
“无表面扩散,则无异相催化。”——盖博·索马杰。表面扩散作为固体表面科学中的基础研究之一,在能源材料、化学工业和环境保护等许多重要领域中扮演着十分重要的角色。 虽然目前已广泛建立了多达几十种能够在超高真空或者气相环境中系统研究表面扩散的实验方法。然而在电化学体系中,对于电极表面吸附物种表面扩散行为的研究无论在实验上还是理论上都是极具挑战的。微纳电极技术为电化学领域的研究带来了更高的空间及时间分辨率,从而许多在常规尺寸电极上无法直接观测的现象却在微纳电极上显得尤为突出,例如吸附物种的表面扩散 ...
王玮
core
Parameterized Analysis of Craniocerebral Injury Caused by Fist [PDF]
Objective Based on the theory of biomechanics, the finite element method was used to study the injury characteristics of different parts of brain hit by fist with different force and to predict the risk of craniocerebral injury, in order to provide ...
GAO Yong, LI Zheng-dong, ZOU Dong-hua, et al.
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Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
wiley +1 more source
从实验和有限元模拟两方面对影响压缩模量测试结果的关键因素进行分析.对3种长细比为3的典型金属材料进行了压缩试验,发现测得的压缩模量(线性段的斜率)明显低于真实值.在考虑斜接触效应后,有限元模拟结果和实验曲线吻合的很好 ...
代玉静, 刘薇, 董杰, 郇勇
core
基于微电磁光开关的工作原理,设计了MEMS电磁反射型光开关.采用ANSYS 9.0有限元软件分析结合Mathematica数值计算研究了微电磁光开关所需的电磁力、磁芯线圈的磁场分布、悬臂梁受电磁力的形变状态,从而获得磁芯线圈的匝数、悬臂梁位置、悬臂梁与平面磁芯线圈接触区域等结构参量.九江市杰出青年基金项目(No.2018042)厦门大学校长基金项目(No ...
吴志明, 吴雅苹, 陈晓航
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