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ANSYS Workbench 12.1官方中文培训教程

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ly 2009 Inventory #002666
Workshop 3 - Results
• You can also plot contours at specific frequencies. • Click RMB on the solution object and >Insert> Stress, Strain, or Deformation
– set the scoping to all faces on the beam – set the Spatial Resolution to Use Maximum – set the Orientation to Y Axis
Training Manual
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
• The Beam (3 m x 0.5 m x 25 mm) is made of Steel.
Constrain (Fix) Both Ends
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-2
July 2009 Inventory #002666
WS3-7
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Workshop 3 - Environment
– – – – – –
Training Manual
• In the Harmonic Response branch, apply one force to one edge.
There are two edges imprinted on the beam face. Switch to Edge selection mode as necessary and >Insert>Force. Use LMB and drag over surface to highlight to pick the applicable edge. Click “Apply” in the Details window In Details, change the “Defined By” to “Components” (i.e., XYZ). Enter 250 for “Y”. Leave Phase Angle = 0
Training Manual
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-5
July 2009 Inventory #002666
Workshop 3 – Modal Results
• Solve the Modal analysis. • Create some Mode Shape Results to review the results.
– note that modes 1 and 2 fall between 0 and 50 Hz
Training Manual
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-6
July 2009 Inventory #002666
WS3-4
July 2009 Inventory #002666
Workshop 3 - Environment
• Constrain both ends of the Beam.
– – – – – Click on the Modal Branch and >Insert>Fixed Support. Switch to edge selection mode as necessary Use LMB to pick the two applicable edges. Hold <CTRL> to add to your selections Click “Apply” in the Details window
Workshop 3 - Preprocessing
Training Manual
• Drag and drop the Fixed Support from the Modal branch to the Harmonic Response branch.
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
• Edit the Model cell to open the Mechanical application.
– verify that the material assignment is Structural Steel
Training Manual
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-9
July 2009 Inventory #002666
Workshop 3 – Harmonic Response Solution
Training Manual
• Edit the Analysis Settings.
– – – – set the Range Minimum to 0 Hz set the Range Maximum to 50 Hz set the Solution Intervals to 50 set the Constant Damping Ratio to 2%
• Solve the Harmonic analysis.
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
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July 2009 Inventory #002666
Workshop 3 – Results
• Insert a Deformation Frequency Response.
Training Manual
Contours at a specific Frequency
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
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July 2009 Inventory #002666
Workshop 3 – Results
Workshop 3 – Project Schematic
• From the project schematic, insert a new Modal system.
– we will first look at the natural frequencies and mode shapes of the system
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-8
July 2009 Inventory #002666
Workshop 3 - Environment
• Apply another force to the other edge.
• Import the Geometry file
– beam.agdb
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-3
July 2009 Inventory #002666
Workshop 3 - Preprocessing
Workshop 3 - Goals
Training Manual
• Our goal is to determine the harmonic response of a fixed-fixed beam under the influence of two harmonic forces.
– The forces represent rotating machines mounted at the “one-third” points along the beam. – The machines rotate at 300 to 1800 RPM.
Training Manual
– set Y Component to 250 N – leave Phase Angle = 0 – We will investigate the results as the phase angle between these loads changes.
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
– This will insert the result object(s) – Step thru the Details for each and specify the Geometry and other details. – It is necessary to specify a specific frequency and phase angle.
– set the Phase Angle to 180° – resolve the Harmonic Response
Training Manual
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
WS3-14
July 2009 Inventory #002666

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Ansys_12[1].0_CFX_官方教程__17

Ansys_12[1].0_CFX_官方教程__17

• Stage, Frozen Rotor, Transient Rotor Stator
– Solver parameters
• Advection Scheme • Time Scale/Step controls
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
B-13
April 28, 2009 Inventory #002598
Turbo Pre and Post
CFD-Post Turbo Workspace
Training Manual
• The Turbo workspace improves and speeds up postprocessing for turbo machinery simulations
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
B-12
April 28, 2009 Inventory #002598
Turbo Post
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved.
B-2
April 28, 2009 Inventory #002598
Turbo Pre and Post
CFX-Pre Turbo Mode
Training Manual
• • • • • Frozen rotor Transient rotor stator Stage Periodic None
ANSYS Workbench 12.1 显示动力学 中文培训教程

ANSYS Workbench 12.1 显示动力学 中文培训教程

练习7求解和模拟控制受轴向载荷梁的屈曲分析Workshop Supplement7. 求解和模拟控制Explici Workshop Supplement受轴向载荷梁的屈曲分析•1. 读“beambuck.inp”输入文件b b k i cit Dynam –beambuck.inp 输入文件建立了由SHELL163单元组成的中空的四边形截面的梁。

梁长400mm 厚2mm ，受轴向压缩，z 轴方向有位移载荷(UZ = 250 mm)。

模型中段结构的缺陷引起屈曲。

只建一半模型，边界条件已定义，LS-mics wit 但塑性材料模型、沙漏控制、接触设定、载荷需要定义。

求解情况可用LS DYNA 开关控制SW2监测。

th ANSYS YS/LS YS/LS--DYN Utility Menu > File > Read Input from … > beambuck.inp > OKYNA 6.0March 7, 2002Inventory #001631Workshop Supplement 步骤2.Explici Workshop Supplement•定义梁的双线性塑性特性.–Preprocessor: Material Props > Material Models … > LS-DYNA > cit Dynam Nonlinear > Inelastic > Kinematic Hardening > Bilinear Kinematic 然后输入右图所示数据点击mics wit –然后输入右图所示数据，点击Material 和Exit.th ANSYS 步骤3.YS/LS YS/LS--DYN •确定type 5沙漏控制零能模式。

•Preprocessor: Material Props >Hourglass Ctrls > LocalYNA 6.0•材料号为1, 输入VAL1为5. 其它值默认> OKMarch 7, 2002Inventory #001631Workshop Supplement 步骤4.Explici Workshop Supplement•指定接触算法。

ANSYS Workbench 12.1官方中文培训教程

ANSYS Workbench 12.1官方中文培训教程

Workbench –Mechanical Introduction第一章简介B. ANSYS Workbench 简介Training Manual •什么是ANSYS Workbench?–ANSYS Workbench中提供了与ANSYS系统求解器的强大交互功能的方法。

这个环境提供了一个独特的CAD及设计过程的集成系统。

法这个环境提供了个独特的及设计过程的集成系统•ANSYS Workbench由多种的应用模块组成（例子）：–Mechanical：利用ANSYS的求解器进行结构和热分析。

•网格划分也包含在Mechanical应用中。

–Mechanical APDL：采用传统的ANSYS用户界面对高级机械和多物理场进行分析。

–Fluid Flow (CFX)：利用CFX进行CFD分析。

–Fluid Flow (FLUENT)：使用FLUENT进行CFD分析。

Fl id Fl(FLUENT)–Geometry (DesignModeler)：创建几何模型（DesignModeler）和CAD几何模型的修改。

Engineering Data：定义材料性能。

–Engineering Data–Meshing Application：用于生成CFD和显示动态网格。

–Design Exploration：优化分析。

()格行转–Finite Element Modeler (FE Modeler)：对NASTRAN和ABAQUS的网格进行转化以进行ansys分析。

–BladeGen (Blade Geometry) ：用于创建叶片几何模型。

–Explicit Dynamics：具有非线性动力学特色的模型用于显式动力学模拟。

Training Manual… ANSYS Workbench 简介•Workbench 环境支持两种类型的应用程序：–本地应用(workspaces):目前的本地应用包括工项目管理，工程数据和优化设计本机应用程序的启动完全在窗运行•本机应用程序的启动，完全在Workbench 窗口运行。

ANSYS_Workbench安世亚太中文培训资料

ANSYS_Workbench安世亚太中文培训资料

动力学分析简介M1-1M1-2动力学第一节: 定义和目的什么是动力学分析?•动力学分析是用来确定惯性（质量效应）和阻尼起重要作用时的结构或构件动力学特性的技术。

•“动力学特性”可能指的是下面的一种或几种类型:–振动特性-（结构振动方式和振动频率）–随时间变化载荷的效应（例如：对结构位移和应力的效应）–周期（振动）或随机载荷的效应M1-3总之，动力学分析有下列类型：Courtesy: NASA动力学动力学分析类型（接上页）•模态分析---确定结构的振动特性•瞬态动力学分析---计算结构对随时间变化载荷的响应•谐响应分析---确定结构对稳态简谐载荷的响应•谱分析---确定结构对地震载荷的响应•随机振动分析---确定结构对随机震动的影响M1-4动力学第三节: 基本概念和术语•通用运动方程•求解方法•建模要考虑的因素•质量矩阵•阻尼M1-5动力学-基本概念和术语运动方程•通用运动方程如下：[]{}[]{}[]{}(){}t F u K u C uM =++ •不同分析类型对应求解不同形式的方程–模态分析：设定F （t ）为零，而矩阵[C] 通常被忽略；–谐响应分析：假设F （t ）和u （t ）都为谐函数，例如Xsin （ωt ），其中，X 是振幅，ω是单位为弧度/秒的频率；–瞬间动态分析：方程保持上述的形式。

其中:[M]= 结构质量矩阵[C]= 结构阻尼矩阵[K]= 结构刚度矩阵{F}= 随时间变化的载荷函数{u}= 节点位移矢量{ů}= 节点速度矢量{ü}= 节点加速度矢量M1-6动力学-基本概念和术语求解方法如何求解通用运动方程?•两种主要方法：–模态叠加法–直接积分法M1-7动力学-基本概念和术语求解方法（接上页）直接积分法•直接求解运动方程•在谐响应分析中，因为载荷和响应都假定为谐函数，所以运动方程是以干扰力频率的函数而不是时间的函数的形式写出并求解的•对于瞬态动力学，运动方程保持为时间的函数，并且可以通过显式或隐式的方法求解模态叠加法•确定结构的固有频率和模态，乘以正则化坐标，然后加起来用以计算位移解•可以用来处理瞬态动力学分析和谐响应分析•详见后面相关章节M1-8动力学-基本概念和术语求解方法（接上页）显式求解方法•也称为闭式求解法或预测求解法•不需要计算矩阵的逆•可轻松处理非线性问题（无收敛问题）•积分时间步Δt 必须很小，但求解速度很快（没有收敛问题）•对于短时间的瞬态分析有效，如用于波的传播，冲击载荷和高度非线性问题•当前时间点的位移{u}t 由包含时间点t-1的方程推导出来•有条件稳定: 如果Δt 超过结构最小周期的确定百分数,计算位移和速度将无限增加•ANSYS-LS/DYNA 就是使用这种方法，此处不作介绍隐式求解法•也称为开式求解法或修正求解法•要求矩阵的逆•非线性要求平衡迭代（存在收敛问题）•积分时间步Δt 可以较大，但因为有收敛问题而受到限制•除了Δt 必须很小的问题以外，对大多数问题都是有效的•当前时间点的位移{u}t 由包含时间点t 的方程推导出来•无条件稳定: Δt 的大小仅仅受精度条件控制, 无稳定性。