Mechanical and Structural Engineering Analysis & Design Software

FEA Software for frames & shafts

• Linear finite element analysis (FEA) of space frames, shafts and beams using line (Euler Beam) elements.

• Beam and stepped shaft objects. Shafts can be assigned a rotation speed. Coupled shaft trains are supported.
• Static and harmonic (stead-state) dynamic analysis: element masses modeled as continuous, distributed masses rather than lumped masses. Steady-state vibration analysis of mechanical and structural design.
• Rotating disk objects: can be assigned perimeter force loads, mass, radius of gyration and eccentric mass.
• Dampers and linearized journal bearings
• Rigid, pinned and sliding connections.
• Thermal expansion (static delta T)
• Unlimited number of nodes & elements
• 3D CAD interface with beams and shafts represented graphically as 3D solids (wireframes or shaded)
• Minimum 6 DOF per node

Seismic Loading of a Structural Frame

Motor Rotor Driving a Gear Shaft

• Automatic node assignments (no need to draw beams in segments, neutral axis intersections, etc. are recognized as nodes). Nodes will be displayed automatically
• Easily define standard & custom cross sections and shaft profiles. Cross section calculator is included. Prism can read AutoCAD dxf drawings of beam cross sections.
• Store cross section and material library files for future use. Library of US standard sections is included.
• Concentrated force & moment/torque loads - either static or harmonic
• Distributed force & moment/torque loads - either static or harmonic
• Concentrated mass loads - respond to gravity and acceleration
• Static and dynamic support displacements (Seismic simulations)
• Summary report generation
• Animation of steady-state dynamic results - either entire system or single beam/shaft response graphs
• Station orbit & station deflection, acceleration, stress & strain vs time

• Linear and angular deflections, overall displacements, force & moment reactions, normal & shear stresses, maximum principal stress & strain, Von Mises stress, St Venant, strain energy density, Tresca.
• Fatigue related stress and strain analysis: peak alternating signed Von Mises stress vs mean stress, peak alternating max principal strain vs mean stress, stress and strain history.
• Frequency response
• Critical loads (Euler column buckling)
• View results as interactive graphs or color scaled neutral axes
• Editing commands: change beam cross-sections or shaft profiles in place, move, copy, rotate, polar & rectangular arrays.
• US or SI units with automatic conversion
• Operating System: Windows NT, 2000 & XP

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