 Program Overview
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Engineer's Studio, 3D FEM analysis program is in house development from
pre-processing and calculation engine to post-processing.
This program analysis non-linear behavior of structure by modeling with
beam elements considering a part of civil engineering and building structure
as one bar or continuous plate elements. |
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 Related Information |
 Press release
New Product Introduction
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| Engineer's Studio(R) related books |
| STRUCTURAL ANALYSIS -Case Studies and Numerical Simulation |
 Written by Hiromichi Yoshikawa, Hiroki Aoto, Yoshitaka Kai |
| Release : November 18, 2009 |
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Published by : |
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| 220 pages / all color pages |
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Price : 2800yen (+tax) |
Containing explanation of wide variety of case studies from structural
analysis basics to parametric simulation of real structures. Including
advanced analysis cases using fiber elements.
| Contents |
Chapter 1: Introduction to structural analysis
Chapter 2: Non linear analysis of section
Chapter 3: Non linear analysis of members
Chapter 4: Earthquake response analysis of structures
Chapter 5: Frame analysis basics |
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Engineer's Studio(R) for Students Ver.1.06.00 (Released on December 28th,
2010
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The version for students is released. This version is for noncommercial
purpose only. |
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Ver.1.06.00 Revision up points (Released on December 27th, 2010)
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1. Sparse Matrix Solver is added to solver. It supports for the large scale
model and high-speed calculation.
Example model: a 45,000 node model (plate elements, material nonlinear,
static analysis, 50 steps)
It uses 3GB memory compared with 20GB in the previous version.
This model calculates in 30 minutes compared with 20 hours in the previous
version. |
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Ver.1.05.00 Revision up points (Released on September 13th, 2010)
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1. Civil structure biaxial section calculation option.
2. Batch generation of focus points.
3. Skipping function for the band width optimization of a large model.
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Ver.1.04.00 Revision up points (Released on August 16th, 2010)
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- The new Solver for 64bit OS implemented
- Surface distributed loading for plate element become available
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Ver.1.03.01 Revision up points (Released on May 20th, 2010)
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- Improved speed and post processing (Improved speed by 20-50%)
- Load can be divided to the loading objects (nodes, members)
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Engineer's Studio Ver.1.03.01 improved simulation speed ('10.05.25) |
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| (1) Single column experimental model |
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Simulation time
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UC-win/FRAME(3D) Ver.4.00.01 :
9 minutes 41seconds |
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Engineer's Studio Ver.1.03.01 :
7 minutes 6 seconds |
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>> improved by 27% |
Simulation
- node number : 585
- number of fiber elements : 6
- number of fiber elements : 735
- simultaneous vibration in 3 directions
- Simulation step : 1801
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| (2) 3-span earthquake resistant bridge model |
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Simulation time
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UC-win/FRAME(3D) Ver.4.00.01 :
7 minutes 40 seconds |
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Engineer's Studio Ver.1.03.01 :
6 minutes 54 seconds |
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>> improved by 10% |
Simulation
- node number : 62
- number of fiber elements : 24
- number of fiber elements : 25
- Vibration in bridge axis direction
- Simulation step: 3001 steps x 3times
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| (3) Metal arch bridge |
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Simulation time
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UC-win/FRAME(3D) Ver.4.00.01 :
44 minutes 39 seconds |
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Engineer's Studio Ver.1.03.01 :
35 minutes 54 seconds |
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>> improved by 20% |
Simulation
- node number : 1730
- number of fiber elements : 932
- number of fiber elements : 153
- Vibration in transverse direction
- Simulation step : 3001 steps
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Ver.1.03.00 Revision up points (Released March 17th, 2010)
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- Displaying calculation results of plate element by contour chart
(deformation. plate element section force, curvature, distortion, main
stress, Mises stress)
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 Overall view |
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Overall view (view from under the bridge) |
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| Deformation contour |
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Floor slab bending moment contour |
- Function to create plate element model with cylindrical-shape opening
- Possible to create plate element from complex shapes including a shape
with openings
- Initial section force can be considered for frame element and spring element
- Eigenvalue analysis in consideration of geometric rigidity
- Creating node at the intersection of frame elements
- Improved crack diagram of plate element
- Displaying the steps where non linear element has yielded or reached an
ultimate state
- Improved display function for deformation distribution of fiber element
- Vertical and horizontal meshing of fiber element section
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Program Features
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Main feature in analysis is that implement the 3D filer elements, which
have ever received a good reputation and many actual results in UC-win/FRAME(3D) and the plate elements based on the Reissner-Mindlin theory and also static
/ dynamic analysis are available, considering material nonlinearity and
geometric nonlinearity(Large Displacement) simultaneously.
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 Image of Fiber elements (the mathematical model on the right) |
Plate elements can have laminated structures, consists of layers which
direct to the thickness way
and define each setting for different type of materials between each layers
or linear/non/linearity.
Reinforcement concrete non linear constitutive equation is adopted as concrete
constitutive equation applied to the plate elements, which was developed
by the concrete laboratory in Tokyo University.
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| Image of laminated plate elements (the mathematical model on the right) |
Main features as follows.
Category
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Contents |
| Analysis |
static analysis / dynamic analysis / eigenvalue analysis |
| Nonlinear Analysis |
material nonlinearity / geometric nonlinearity(large displacement) / composite
nonlinearity considering both material nonlinearity and geometric nonlinearity
at the same time |
| Applied Theories |
infinitesimal displacement / large displacement / elastic foundation beam
theory / Euler-Bernoulli beam theory / Timoshenko beam theory(considering
shear deformation) / Reissner-Mindlin theory |
| Elements |
elastic beam element / spring element / M-φ element / fiber element /
plate element(laminated plate) |
| Boundary Conditions |
locking condition: six degree of freedom for the nodal point(free or fixed
or spring) / distributed spring for elastoplastic beam element(two way
of axial member direction and axial member ) |
| Material Types |
concrete / reinforcement bar / prestressing steel / steel plate / carbon
fiber sheet / aramid fiber / elastic material(by input any young module)
/ non structural material(considering only weight per unit volume) |
| Definable Load |
nodal load / material load(concentrated / distributed / projection) / thermal
load / forced load |
| Auto Created Load |
dead load / prestressed load / horizontal seismic coefficient load |
| Static Load |
monotone increasing / cyclic (constant, increasing) / reversible cyclic
(constant, increasing) |
| DynamicLload |
acceleration wave( indivisual or simultaneous input of two components,
vertical adn horizontal) |
| Dynamic Load |
direct integraton method by the Newmark-β method(β=1/4) |
| Damping |
stiffness proportional pattern by element (initial stiffness, instantaneous
stiffness), Rayleigh damping (initial stiffness, instantaneous stiffness)
/ Rayleigh damping by element(initial stiffness, instantaneous stiffness) |
| Mass Matrix |
consistent mass matrix / lumped mass matrix |
Isoparametric elements often used in FEM, is adopted in palte elements
Shapes and types of elements are as follows.
 Input / Output Screen Features
Features of I/O screen are as follows:
- Dockable interface, which is detachabe on the main window
- Undo / Redo function, runs in even a large scale model with many nodes.
- Tabular input, ease to copy, paste and check.
- Creation of continuous beam elements / plane elements by mouse operation
- Supoort the data created by UC-win/FRAME(3D)
- Support for enlargement, reduction and move in every direction of rectangular
like 3D CAD
- Move / Rotation of elements by mouse gesture
- Easy paste of another model in an exsisting model
- Tree structure, easy to see model generating procedure
- Support for Multiple windows of model
- High advanced report output function
- powerful search function
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Main screen
Engineer's Studio adopts new user interface called as "rebbon".
"Rebbon" which introduced from 2007 Microsoft Office System is
said that it will be standard in future Windows applications. It replaces
conventional "main menu" or "main tool bar" and groups
commands by functions. This makes it possible to reach your target commands
easily. This new concept have realized a user friendly operatablility for
the Engineer's Studio, which have complicated functions. Tjhe main screen
is on the right. the rebbon stands on the upper side of the screen and
trees stands on the left side.
Screen examples
<Case1>
Following image show the scene where the "View setting"tab for
Display/non-display is switched on the right side tree and the button to
display Perspective / Plane / Side / Front view are put and their views
are arranged at random on the right side screen.
<Case2>
This shows that multiple input windows of table format is arranged in one
window. Any windows can be put at the same time and rearranging is also
available like tab swithing. Add / Delete of nodes in the model by a mouse
operating reflects table automatically.
<Case3>
The Left image shows that triangle plate elements have been made by mouse
operating. Mesh division of triangle will be carried out automatically
by clicking three points in space in order and put on the "Apply"
button. The right image shows that square elements are created automatically
by dragging two point in space. Anyway, small window is used for the size
setting of mesh division or selectting element types.
<Case4>
The image shows that a window is called to search a elastic beam element.
Cross lines and a cross point are drawn on the searched element. There
are the option, which can bring the element to be "selected".
<Case5>
The deformation of plate elements and the judgement result by damage, are
displayed at the same time.
<Case6>
Setting window of report output, which do the output setting as it looks
when outputed.
Future Schedule
Followins are scheduled to..
- support for the section check for the standard based on specifications
for highway bridges and so on.
- develop the Engineer's Studio Inplane
- launch the Engineer's Studio analysis support service
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