Heat Transfer Analysis/Verification Capabilities

NEW Electronic Package Designs

• Full 3D Fluid and Heat Transfer Simulation for Electronic Packaging
          Thermal Profiles
           Velocity Fields
           Flow Animation
  
  Heat Sink Design and Verification
  Thermo Electric Cooler Simulation and Design
  Heat Pipe Simulation and Design/Heat Exchanger Simulation and Design
  Fan Selection and Placement Optimization Vent Locations, Design and Optimization
  PCB Part Placement Studies for Optimal Heat Transfer
  
  CURRENT Electronic Package Designs
  Critique of Current Designs and Improvement Studies
  
  Performance Verification of Design for NEBS, UL, ETSI, DOD
  Data Acquisition via Thermocouples or IR Scans
  Thermal Chamber
  
  
  Programs Used
  
• cfDesign (Finite Element)
• Flotherm (Finite Volume)
• Algor (Finite Element) for Heat Transfer and Fluid Simulation
• ANSYS (Finite Element)/ Flotran
  

Structural Analysis/Verification Capabilities

New and Existing Designs

§         Full 3D Stress Strain Simulation

Mechanical Event Simulation with linear and nonlinear material models; static stress analysis with linear and nonlinear material models; the weight, center of gravity and mass moment of inertia calculations; linear contact with gap/cable elements and a suite of modeling capabilities.

TYPICAL APPLICATIONS

• Blast and Shock Tests
• Contact Analysis
• Crash Test Simulation
• Creep Analysis
• Drop Tests
• Earthquake Simulation (NEBS)
• Friction Analysis
• Fuel Sloshing
• Hertzian Contact
• High-Speed, Short-Duration Events
• Impact Analysis
• Local Buckling
• Material Forming
• Material Transport and Storage
• Mechanical Linkages
• Multiple Body Contact and Interaction
• Piercing Objects
• Press-Fit
• Pre-Stress Concrete
• Product Life Cycle Simulation (Failure)
• Rolling, Extruding and Forming
• Snap-Fit
• Snap-Through Buckling
• Stamping
• Temperature-Induced Stress Analysis
• Tolerance Testing
• Underwater Design Optimization
• Vehicle Rollover
• Valve Response
• Voltage-Induced Stress Analysis

ANALYSIS CAPABILITIES

• Rigid-body motion
• Flexible-body motion with nonlinear material models
• Flexible-body motion with linear material models
• Failure analysis
• Contact analysis
• Residual stress analysis
• Load stiffening
• Damping
• Hydrodynamic effects
• Elastic deformation
• Permanent deformation
• Consideration of geometric nonlinearity
• Consideration of inertial effects
• Consideration of voltage-induced effects
• Consideration of temperature-induced effects
• Consideration of high- and low-frequency effects
• Static stress with nonlinear material models
• Linear contact analysis
• Static stress with Linear Material Models
• Weight, center of gravity and mass moments of inertia

MODELING

• CAD support for 2-D and 3-D wireframe geometry in STP, IGES, DXF and CDL file formats as well as direct PRO/E, Solidworks, and Alibre translations.
• Complex surface modeling using NURBS, polylines and b-splines
• Copy, divide, fillet, intersect, mirror, move, rotate, scale, trim/extend and other commands for 3-D solid model generation
• Capability to combine all element types available for a given analysis type in a single model
• KinePak mechanism wizard to define links and then dynamically examine the motion of various types of basic mechanisms including:
  • Four-bar
  • Toggle
  • Slider/Crank
  • Class 1 lever
  • Class 2 lever
  • Class 3 lever
  • Triangle
• Provides direct access to updated AISC section property data for use with linear beam elements

MATERIAL MODELS

• Elastic
• Plastic
• Variable tangent
• Curve description
• Curve description with cutoff tension
• Drucker-Prager
• von Mises with Isotropic Hardening
• von Mises with Kinematic Hardening
• von Mises curve with Isotropic Hardening
• von Mises curve with Kinematic Hardening
• Temperature-dependent orthotropic
• Thermoelastic
• Thermoplastic
• Viscoelastic
• Viscoplastic
• Mooney-Rivlin
• Multiple-coefficient (5-constant) Mooney-Rivlin
• Multiple-coefficient (9-constant) Mooney-Rivlin
• General Mooney-Rivlin
• Ogden
• Piezoelectric
• General piezoelectric
• Linear elastic isotropic
• Linear elastic orthotropic
• Linear temperature-dependent isotropic
• Linear temperature-dependent orthotropic

LOADING AND CONSTRAINTS

• Initial velocities
• Initial rotations
• Impact planes
• Surface-to-surface contact
• Friction coefficients
• Point-to-surface conact
• Time-dependent load curves
• Multiple load curves
• Follower forces
• Follower pressures
• Forces
• Moments
• Temperatures
• Voltages
• Prescribed displacements
• Prescribed rotations
• Pressures
• Hydrostatic pressures
• Tractions
• Distributed loads
• Gravitational forces
• Centrifugal forces
• Global and off-axis constraints
• Variable-stiffness off-axis constraints
• Surface force (CAD models only)

RESULTS EVALUATION

• Result contours of:
  • Stress
  • Strain
  • Displacements
  • Reaction force
• Plots curve data over multiple steps
• Plots displacements, velocities, accelerations, reaction forces and maximum stresses as curve data during or after processing
• Plots convergence for linear static iterative solver
• Fast Fourier Transform (FFT) display
• Plots internal force values for actuator elements over time
• Plots contact forces over time for nodes involved in surface-to-surface contact
• Shear and bending moment diagrams for beam elements
• Precision contouring for accuracy assessment
• Point-and-click result inquiry options
• Material and result rendering for model and analysis visualization
• 3-D dynamic viewing options
• Cross-sectional viewing options
• Result text listing
• Support for exporting results to common Windows applications
• Text output of weight, volume, center of gravity, mass moment of inertia and products of inertia
• Stress linearization utility for use with a linear static stress analysis on thin-walled structures
• Capability to combine the results of multiple linear static stress analyses

Performance Verification of Design for NEBS, UL, ETSI, DOD

§         Data Acquisition via Accelerometers/Strain Gauges/Thermocouples or IR Scans

§         Commercial Lab Facilities for Verification