Calculation of structures, machine parts and mechanisms

The APM WinMachine Structural package (previously called APM StructFEM) allows you to analyze the stress-strain state (using the finite element method) of three-dimensional objects of any complexity under arbitrary fastening, static or dynamic (force or temperature) loading.

Finite element analysis tools allow you to prepare a structural model for analysis using rod (beam), plate and solid finite elements. The finite element mesh can be generated automatically or manually. In this case, the initial geometry can be obtained from third-party CAD systems by importing files in STEP and SAT formats.

The product also includes a specialized calculation module for analyzing connections in structures. This allows, having received information about the loading of the joint, to select its optimal characteristics, for example, the minimum required diameters and the number of bolts or rivets, leg and length of the weld, etc.

APM WinMachine Structural is intended for use in the following areas: automotive, nuclear, oil and gas, heavy and material handling engineering, railway transport, education (training university students with technical specialties), etc.

In addition, in addition to the basic capabilities of the product, additional functionality (options) is available :

  • Thermo: calculation of unsteady thermal conductivity;
  • Non-linear: non-linear calculations;
  • Composite : calculation of structures made of composite materials;
  • Fatigue : endurance calculation;
  • Harmonic : harmonic analysis;
  • TopOpt : topology optimization;
  • APM FGA liquid and gas flow APM FGA;
  • APM EMA electromagnetic fields APM EMA

The product is registered in the Register of Russian Computer Programs and Databases :

The computational core of the product - the APM Structure3D module - has a software certification passport issued by ROSTEKHNADZOR, FBU "STC NRS".


calculation of structures made of composite materials


endurance calculation


harmonic analysis


topology optimization


liquid and gas flow APM FGA


electromagnetic fields APM EMA

Linear static calculation:
  • distribution of stresses and their components;
  • linear and angular movements;
  • deformations;
  • internal efforts;
  • safety factors for material fluidity and strength.

Nonlinear calculation:
  • taking into account geometric and physical nonlinearity;
  • contact interaction;
  • modeling of the loading and unloading process.

    Stationary and non-stationary thermal conductivity: 
  • specialized thermal loads;
  • temperature distribution maps;
  • heat flow distribution maps;
  • rate of temperature change.

    Stability calculation: 
  • determination of safety factors;
  • construction of buckling forms.

    Calculation of natural frequencies:
  • determination of natural frequencies of oscillations;
  • building your own forms.

    Calculation of forced vibrations:
  • setting a schedule for changing the forcing efforts;
  • animation of maps of the stress-strain state of a structure;
  • checking the absence of resonance phenomena.

    Calculations of connections in structures:
  • threaded;
  • welded;
  • rivet;
  • connections of bodies of revolution.

Nonlinear calculation:
  • automatic generation of FE meshes on surface and solid 3D models;
  • constant or variable (adaptive) partition step;
  • additional functions for pre-partitioning edges and surfaces;
  • the ability to “manually” edit the created FE mesh;
  • work with rod, plate and solid FE.

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