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基于ANSYS的汽车变速器检测试验台架有限元分析

刘鹏浩,付胜,朱晓民

《中国工程科学》 2014年 第16卷 第8期   页码 74-78

摘要:

本文运用Solidworks 软件对汽车变速器检测试验台架进行了三维建模,通过ANSYS软件进行瞬态分析和模态分析,得到了汽车变速器检测试验台架的应力云图

关键词: 变速器检测试验台     ANSYS     有限元分析     瞬态分析     模态分析    

基于ANSYS的悬索桥分析方法研究

谢雪峰,罗喜恒

《中国工程科学》 2012年 第14卷 第5期   页码 101-105

摘要: 基于ANSYS平台进行二次开发,主要着眼于鞍座的模拟、顶推的实现、主缆和吊索的无应力长度确定、无应力长度保持不变的方法,并给出润扬大桥算例予以验证,使得用ANSYS分析悬索桥具有了专用程序的精度和通用程序前后处理方便的特性

关键词: 悬索桥     ANSYS二次开发     鞍座     顶推     无应力长度     迭代    

T形截面柱框架节点试验及非线性有限元分析

陈昌宏,黄莺,马乐为,吴敏哲,单建

《中国工程科学》 2007年 第9卷 第11期   页码 92-95

摘要: 提出在低周期反复荷载作用下T形柱框架节点的裂缝呈反“K” 型,而不是类似于常规矩形节点的“X”型交叉裂缝,其受力机理偏于较陡的斜压杆受力模型;运用大型通用有限元软件ANSYS

关键词: T形节点     裂缝     破坏机理     ANSYS     非线性有限元    

分段装药结构爆破效果的数值模拟研究

胡涛,李祥龙,关思,何丽华

《中国工程科学》 2014年 第16卷 第11期   页码 36-41

摘要:

基于大型非线性动力分析软件LS-DYNA,选用弹塑性模型*MAT_PLASTIC_KINEMATIC 和JWL方程,建立无限岩体介质中中深孔爆破时连续装药结构和分段装药结构三维模型,并进行了数值模拟,再现了两种装药结构爆破过程中的应力发展过程,对比分析了它们在Von Mises 有效应力分布、自由面有效应力峰值、孔壁压力分布及加速度等衰减上的差异。结合工程现场爆破实践验证了分段装药结构可以明显改善爆破效果。

关键词: 中深孔台阶爆破     分段装药结构     ANSYS/LS-DYNA     数值模拟    

Numeric simulation for structure’s damage identification of space truss

JI Weihong, SONG Yupu, LIANG Bing

《机械工程前沿(英文)》 2007年 第2卷 第4期   页码 423-428 doi: 10.1007/s11465-007-0072-0

摘要: Damage detection by using the changes of dynamic parameters is a conventional damage diagnosis method, however, some indices are not sensitive enough to the most structural damages. In this study, the analytical data of displacement modes of truss structure are obtained by using the finite element analysis sof—ANSYS. The mode analysis technique for the axial strain change of any stick is used to detect the steel trusses with different damages. The analytical results show that the damage location and degree of the truss stick can be effectively diagnosed by means of the axial strain change.

关键词: analysis sof—ANSYS     conventional     displacement     element analysis     different    

Seismic responses of subway station with different distributions of soft soil in Tianjin

Dejian YANG,Meiling DUAN

《结构与土木工程前沿(英文)》 2014年 第8卷 第2期   页码 187-193 doi: 10.1007/s11709-014-0252-z

摘要: In connection with the practical project of Kunming Road station of Tianjin subway Line 3, the paper established a two-dimensional finite element model with visco-elastic boundary by using ANSYS and analyzed seismic responses of subway station with different distribution of soft soil. The nonlinear dynamic properties of soft soils are modeled by the KINH. And obtain the response rules about displacement and internal force on subway station in the general field soil and five different distributions of soft soil. Provide reference for improving the seismic performance of subway stations in Tianjin soft soil.

关键词: distribution of soft soil     soft soil in Tianjin     seismic response     ANSYS    

Structure optimization for magnetic equipment of permanent magnet retarder

Bingfeng JIAO, Desheng LI, Yunkang SUI, Lezhi YE

《机械工程前沿(英文)》 2010年 第5卷 第4期   页码 442-445 doi: 10.1007/s11465-010-0112-z

摘要: The main purpose of this research is to perform a magnetic analysis on the magnetic equipment of permanent magnet retarder (PMR) and optimize the structure of magnetic equipment with the commercial FEM software ANSYS and its design optimization module. The FEM model is built as an axisymmetric model according to the characteristics of the structure of magnetic equipment. Using this model, the magnetic field distribution and magnetic force are calculated by ANSYS. The mathematical model of structure optimization is also built. The design variables are structural parameters including the dimensions of permanent magnets and magnetic yoke, and the objective function is the magnetic force. The unconstrained optimization model takes the maximum value of magnetic force as the objective. A first-order optimization method is used to determine the optimum design of this problem. The optimization process works entirely with the ANSYS parametric design language (APDL). The design tools are used to understand design space and the behavior of the dependent variables. It is shown that designing a structure with the ANSYS optimization module and its design tools is an effective means to improve the structure.

关键词: optimization     ANSYS     permanent magnet retarder     numerical simulation    

采用分布式光纤传感技术的土坝模型渗漏监测分析

朱萍玉,蒋桂林,冷元宝

《中国工程科学》 2011年 第13卷 第3期   页码 82-85

摘要: text-align: justify;">建立了采用分布式光纤传感技术的模拟堤坝渗漏监测系统,用来人工模拟土坝渗漏,并得到该种情况下测试光纤长度上的应变图,验证了采用分布式光纤传感技术监测土坝的可行性;运用ANSYS

关键词: 光纤传感技术     土坝模型     监测     应变     ANSYS    

Investigating peak stresses in fitting and repair patches of buried polyethylene gas pipes

Reza KHADEMI ZAHEDI, Pouyan ALIMOURI, Hooman KHADEMI ZAHEDI, Mohammad SHISHESAZ

《结构与土木工程前沿(英文)》 2020年 第14卷 第1期   页码 147-168 doi: 10.1007/s11709-019-0587-6

摘要: Nowadays, polyethylene composes a large number of natural gas distribution pipelines installed under the ground. The focus of the present contribution is two fold. One of the objectives is to investigate the applicability of polyethylene fittings in joining polyethylene gas pipes which are electrofused onto the pipe ends and buried under the ground, by estimating stress distribution using finite element method. The second objective is to study the effectiveness of polyethylene repair patches which are used to mend the defected pipelines by performing a finite element analysis to calculate peak stress values. Buried polyethylene pipelines in the natural gas industry, can be imposed by sever loadings including the soil-structure interaction, traffic load, soil’s column weight, internal pressure, and thermal loads resulting from daily and/or seasonal temperature changes. Additionally, due to the application of pipe joints, and repair patches local stresses superimposed on the aforementioned loading effects. The pipe is assumed to be made of PE80 resin and its jointing socket, and the repair patch is PE100 material. The computational analysis of stresses and the computer simulations are performed using ANSYS commercial software. According to the results, the peak stress values take place in the middle of the fitting and at its internal surface. The maximum stress values in fitting and pipe are below the allowable stresses which shows the proper use of introduced fitting is applicable even in hot climate areas of Ahvaz, Iran. Although the buried pipe is imposed to the maximum values of stresses, the PE100 socket is more sensitive to a temperature drop. Furthermore, all four studied patch arrangements show significant reinforcing effects on the defected section of the buried PE gas pipe to transfer applied loads. Meanwhile, the defected buried medium density polyethylene gas pipe and its saddle fused patch can resist the imposed mechanical and thermal loads of 22°C temperature increase. Moreover, increasing the saddle fusion patch length to 12 inches reduces the maximum stress values in the pipe, significantly.

关键词: Ansys software     polyethylene     buried pipelines     polyethylene joints     polyethylene patches     peak von Mises stress     soil-pipe interaction     temperature variation    

高强钢筋混凝土预制弧板井壁力学特性分析

荣传新,王秀喜,程桦

《中国工程科学》 2005年 第7卷 第7期   页码 43-49

摘要:

对高强钢筋混凝土预制弧板井壁结构的研究表明,实验结果与数值计算结果基本一致。高强钢筋混凝土预制弧板井壁结构具有很高的承载能力,影响其承载能力的主要因素依次为混凝土的强度等级、厚径比和配筋率。在均布荷载作用下,混凝土的强度等级提高10MPa,极限承载力提高1.26MPa。厚径比每增加1%,极限承载力增加0.85 MPa。增大配筋率对提高其极限承载力作用不大,配筋率增大3倍,极限承载力只增加了0.1MPa。

关键词: 高强钢筋混凝土预制弧板井壁     力学特性     有限元法     ANSYS    

标题 作者 时间 类型 操作

基于ANSYS的汽车变速器检测试验台架有限元分析

刘鹏浩,付胜,朱晓民

期刊论文

基于ANSYS的悬索桥分析方法研究

谢雪峰,罗喜恒

期刊论文

T形截面柱框架节点试验及非线性有限元分析

陈昌宏,黄莺,马乐为,吴敏哲,单建

期刊论文

分段装药结构爆破效果的数值模拟研究

胡涛,李祥龙,关思,何丽华

期刊论文

Numeric simulation for structure’s damage identification of space truss

JI Weihong, SONG Yupu, LIANG Bing

期刊论文

Seismic responses of subway station with different distributions of soft soil in Tianjin

Dejian YANG,Meiling DUAN

期刊论文

Structure optimization for magnetic equipment of permanent magnet retarder

Bingfeng JIAO, Desheng LI, Yunkang SUI, Lezhi YE

期刊论文

采用分布式光纤传感技术的土坝模型渗漏监测分析

朱萍玉,蒋桂林,冷元宝

期刊论文

Investigating peak stresses in fitting and repair patches of buried polyethylene gas pipes

Reza KHADEMI ZAHEDI, Pouyan ALIMOURI, Hooman KHADEMI ZAHEDI, Mohammad SHISHESAZ

期刊论文

高强钢筋混凝土预制弧板井壁力学特性分析

荣传新,王秀喜,程桦

期刊论文