2. Virtual.PYXIS is a non-parametric structural optimization software
recommended for engineers and designers who need to development
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 the 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.
www.virtualpyxis.comVirtual.PYXISoptimization
Flowchart
Projection Method / Heaviside
Compliance
Volume
Mass
Volume Fraction/Mass Fraction
Displacement
Frequency Value
Linear Buckling
Sequential Linear Programming
Optimallity Criteria
Convex Sequential Approximation
Newton BFGS
Convergence
Optimization
Sensibility
FEM
Filtering
Virtual.PYXISoptimization
Solver independent
It uses ANSYS and ABAQUS 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
ANSYS or ABAQUS
3. www.virtualpyxis.com Virtual.PYXISoptimization
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
VerificationMeshing Topology Optimization
Original Draw single
Draw single with
one symmetry
Draw single with
two symmetry
directions
4. Virtual.PYXIS - Brazil
Rua Tiradentes, 160, Sala 22
São Caetano do Sul, 09541-220
São Paulo
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)
Courtesy:
Extended
Design
Mesh
Topology
Optimization
CAD
Interpretation Validation
Virtual.PYXIS Examples
Piston (compliant mechanism)
Courtesy:
Courtesy:
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
Construction Equipment
Machinery
Railway
Valves and Pumps
Virtual.PYXIS - Germany
Hollerithalle 17
30419 Hannover
(Tecnologie Zentrum im Wissenschaftspark)
Virtual.PYXIS - USA
3440 South Dearborn St Suite 132 S
Chicago Illinois 60616
(University Technology Park at IIT)
info@virtualpyxis.com
www.virtualpyxis.com
