Virtual.PYXIS is a topology optimization software that allows engineers to design innovative components and assemblies with reduced mass in a fast, robust, and accurate manner. It is solver independent and can handle both simple and complex optimization situations, including nonlinear analysis features and compliant mechanism systems. Virtual.PYXIS was created to fill the gap between academic research and what is available commercially by providing a state of the art algorithm that permits greater weight reduction while maintaining stiffness. It integrates well with ANSYS Workbench.

1. www.virtualpyxis.com
V ir tu a l .PYXIS
optimization
The topology optimization software you need
Fast
Robust
Accurate
Userfriendly
Solver Independent
www.virtualpyxis.com

2. Virtual.PYXIS is a non-parametric structural optimization software
recommended for engineers and designers who need to design
innovative components and assemblies with reduced mass.
The software is able to handle from simple to complex optimization
situations, also involving nonlinear analysis features (plasticity and contact) and compliant mechanism systems.
The software has a state of art algorithm, which permits to achieve more weight reduction while keeping the
same level of stiffness.
Virtual.PYXIS has been created to fill the gap between academic research and what is available to the
market.
As it is solver independent, Virtual.PYXIS takes full advantage of the optimization potential and flexibility.
V ir tu a l .PYXIS www.virtualpyxis.com
optimization
Flowchart
Projection Method / Heaviside
Compliance
Volume
Mass
Volfrac/Masafrac
Displacement
Frequency Value
Linear Buckling
Linear programming
Optimallity Criteria
Convex Sequential Approximation
Newton BFGS
Convergence
Optimization
Sensibility
FEM
Filtering
V ir tu a l .PYXIS
optimization
Solver independent
It uses ANSYS solver during optimization cycles
Optimization of nonlinear situations (geometric, material, finite slide contact)
Very robust and modern filter technics based on projection and heaviside methods
The manufacturing constraints are mathematically formulated, more than 26 combinations are avaliable
Good treatment of the sensibilities achieving more weight reduction while keeping the same level of stiffness
Unique solution for complex analysis like compliant mechanisms
Main advantages
or

3. www.virtualpyxis.com V ir tu a l .PYXIS
optimization
Compliant Mechanism
The final structure works like a flexible
mechanism
The mechanism works according to a
force x displacement relation
A factor can be used to amplify or
decrease the relation between input
and output displacements
Nonlinear Optimization
Pre-tensioned components
Geometric and material nonlinearities
Components with finite slide contact
12KN
60KN
96KN
144KN
240KN
300KN
Final geometry changes
increasing the force.
ANSYS Worbench Integration
Perfect integration with ANSYS Workbench Project
Uses ANSYS solver and all its capabilities
Easy preparation of the optimization analysis.
ANSYS ACT development partner:
Casting: split, draw single
Extrude
Symmetry: up to 3 planes symmetry
rotational symmetry
Pattern repetition
Minimum member size
Minimum hole perimeter
Advanced Manufacturing Constraints
Meshing Topology Optimization Verification
Original Draw single
Draw single with
one symmetry
Draw single with
two symmetry
directions

4. Virtual.PYXIS Software
info@virtualpyxis.com
www.virtualpyxis.com
The topology optimization software you need
Truck engine mount support (using advanced manufacturing constraints)
Extended
Design Mesh Topology
Optimization
CAD
Interpretation Validation
Gear (using rotational and multiple symmetry)
Original Iteration 3 Iteration 14 Iteration 30
Tractor cabin mount support (using material nonlinearities)
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Extended
Design Mesh Topology
Optimization
CAD
Interpretation Validation
Virtual.PYXIS Examples
Piston (compliant mechanism)
Courtesy:
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Final Model
Input Model Optimized Model Final Model
Courtesy:
Final Model
Weight reduction = 23%
Weight reduction = 35%
Aerospace
Consumer Appliance
Key Industries:
Automotive
Biomechanics
Eletronics
Medical Equipment
Oil & Gas
Power Generation
Machinery Construction Equipment
Railway
Valves and Pumps