Enson.Studio.: Simulation

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20210101

2021 Happy New Year

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# Keywords = 2021, Flow, Simulation, ... .

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2020 Bye Bye, 希望 2021 一切順利，比流線還順～

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20200307

Roll Forming Simulation of CN103394561B

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# Update = 2020-0308.
# Author : Enson, Yu.
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# Keywords: Roll Forming, Roll Flower, Simulation, ... .
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This study was referred to the China patent [CN103394561B].

Base on the claim figure, a 11 stages roll forming process was presented for designing the roll flower pattern.

The roll flower and rollers were designed by using COPRA, and simulated by using SIMUFACT.

# Roll flower :

# Roll Forming Simulation :

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# REF :

[1]CN103394561B, 一種確定板帶材冷彎成型各道次彎曲角度的方法.

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20200121

運動學與動力學 (Kinematics and Dynamics)

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# Update = 2020-0121
# Author : Enson, Yu, Ph.D.
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# Keywords: CAE, Motion, Simulation, Kinematics, Dynamics, ... .
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# 運動學（kinematics）

專門描述物體的運動，即物體在空間中的位置隨時間的演進而作的改變，完全不考慮作用力或質量等等影響運動的因素[WIKI]。

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# 動力學（Dynamics）

動力學研究力對物體之運動所造成的影響[WIKI]。

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# REFERENCE

[] Kinematics, WIKI, https://en.wikipedia.org/wiki/Kinematics

[] Dynamics, WIKI, https://en.wikipedia.org/wiki/Dynamics_(mechanics)

滾球運動模擬

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# Update = 2020-0121
# Author : Enson, Yu, Ph.D.
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# Keywords: NX, CAE, Motion, Simulation, ... .
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# 滾球運動模擬

圓球因重力掉落後在曲面上滾動，因摩擦而使滾動速度降低。

[] REF = https://youtu.be/Uo-61py4vMs

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20190506

NX 多軸運動模擬

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# Date : 2019-05-06
# Author : Enson, C-H, Yu, Ph.D.
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# Keywords: NX, Multi-Axis Motion, ... .
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# ABSTRACT

以 NX 進行多軸運動模擬（旋轉、直線運動）。

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# Video :

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# REFERENCE :

*Demonstration of multi Axis motion in NX., Youtube, https://youtu.be/iqrDcaKtloE

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20180906

滑軌全展結構強度分析

Keywords: Full extension slide, Structure strength analysis, CAE, ...
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Tool = solidThinking INSPIRE.

Video: [https://youtu.be/Jx2a8n0A8jY]

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20180731

Simulation of Shape Rolling

Keywords: CAE, Shape rolling, Simulation, ... .
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2D Model, Plan strain :

[] Iankov, R. (2003). Finite element simulation of profile rolling of wire. Journal of Materials Processing Technology, 142(2), 355-361.

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滑軌測試方法 (Testing Method of Slide Rails)

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# Date : 2018-07-31
# Author: Enson,C-H, Yu. Ph.D.
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Keywords: Slide rail, Drawer, Test, Life, ... .
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# Testing Method.

[] How Accuride Determines a Drawer Slide Load Rating?, https://www.accuride.com/blog/slideology/determine-load-rating-for-drawer-slide/

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# Service Life Time.

[] Oh, M., Lee, M. K., & Kim, N. (2010). Robust design of roll-formed slide rail using response surface method. Journal of mechanical science and technology, 24(12), 2545-2553. https://link.springer.com/article/10.1007/s12206-010-0914-2

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# REF. Wear.

[] Kim, D., Quagliato, L., Park, D., Murugesan, M., Kim, N., & Hong, S. (2017, May). Wear-caused deflection evolution of a slide rail, considering linear and non-linear wear models. In Journal of Physics: Conference Series (Vol. 843, No. 1, p. 012068). IOP Publishing. http://iopscience.iop.org/article/10.1088/1742-6596/843/1/012068/meta

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20171223

U 型樑連續輥軋成形分析

Keywords : U beam, Roll forming, COPRA RF/FEA, Simulation
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1. 6站式輥花圖與輥輪設計 (COPRA RF)

2. 1/2對稱模型之連續輥軋成形分析 (COPRA FEA / MSC.MARC)

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20170523

CAE 資訊與應用

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CAE 資訊網站

Digital Engineering, http://www.digitaleng.news/de/
Engineering.com , http://www.engineering.com/

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CAE 軟體種類

CFD 計算流體力學 [WIKI]

OpenFOAM：[WIKI] [Website]

Open Source Field Operation and Manipulation.

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泛用型

ANSYS, MARC.

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結構分析

NX Nastran [Siemens] .

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金屬成形分析

DEFORM, SIMUFACT.
DYNAFORM, PamStamp.

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塑膠模流分析

Modex 3D：多模穴共注射成型模擬，不同射速造成流動剪切應力差異，導致材料抵達模穴時間不同，評估改變流道角度、對稱設計或增加溢流區，可改善流動不平衡問題 [CTIMES,2017]。

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REFERENCE

CFD 計算流體力學, WIKI, https://goo.gl/DyK9H9
OpenFOAM, WIKI, https://zh.wikipedia.org/wiki/OpenFOAM
OpenFOAM, Website, http://www.openfoam.com/
NX Nastran, Siemens, https://www.plm.automation.siemens.com/zh_tw/products/simcenter/nastran/index.shtml
善用CAE工具克服多模穴共注射成型挑戰, CTIMES, 20170519, https://goo.gl/vZIB41

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NX-CFD Simulations

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Nozzle injection simulation.

https://youtu.be/HJogULN6O5o

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Water flow simulation.

https://youtu.be/Lat4JGmhdm0

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20151128

梅花沖棒熱鍛成形 (Hot Forging of A Punch Pin)

梅花沖棒熱鍛成形 (Hot Forging of A Pin Punch)

沖棒(pin punch)是用於沖壓鍛造成形常用的沖頭，用於加壓材料，使其填滿模穴，得到所需要的鍛件。

沖棒常見材料是模具鋼，如工具鋼（ SKD-11、SKD-61）、高速鋼（SKH 9），材料強度高硬度高，不容易採用塑性成形方式製造，多採用CNC 工具機加工出外觀後，再利用磨床精修，加工時間長；而生產沖棒的公司，在備料上，常需要備有不同尺寸、不同材質的沖棒以做供應用。

在這篇文章中，利用熱鍛方式進行梅花沖棒之成形模擬。

Youtube : https://youtu.be/e6F8SslMWGQ

20151118

CAE 基本觀念及 NX FLOW Simulation 練習

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CAE 的觀念就是：MODEL！

模型包含：CAD、材料、網格、邊界、求解器 ...。

模型搞清楚了，
不管是CAD 內建的分析模組 (SOLIDWORKS, NX, CATIA ...) ，
還是專門做 CAE 的軟體 (ANSYS, MARC, NASTRAN)，

方法對了，跑做出來的結果就應該要有一致的趨勢.

這動畫是用 NX 熱流(Thermal / Flow)分析模組所做的練習，
給定流體材質與流動範圍、進出口條件，即可進行分析。

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20151117

NX - Motion Simulation 運動模擬

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運動對類型：

(01) Cable 皮帶接合
(02) Joint 鉸鏈接合
(03) Revolute 旋轉接合
(04) Slider 滑塊接合
(05) Cylindrical 圓柱接合
(06) Screw 螺桿接合
(07) Universal 萬向接合
(08) Spherical 球接合
(09) Planar 平面接合
(10) Rack and Pinion 齒輪齒條接合
(11) Point on Curve 點線接合
(12) Point on Surface 點面接合

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驅動力 (Driver) = 初始外部驅動，即動力源。

(1) Non = Without driven force
(2) Constant
(3) Harmonic
(4) Function
(5) Articulation
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範例：

*.以 NX 模擬齒輪傳動

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REFERENCE

周文成 (2012) SIEMENS NX 8.X入門與應用, 新文京開發出版股份有限公司, ISBN:9789862366837.

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