Fabreeka Finite Element (FEA) Analysis Services

Examining mode shapes in a vibrating structure is a valuable step in adjusting vibration amplitudes by varying the stiffness, mass or damping.

A finite element analysis will define and model the mode shapes and response frequencies of a structure, as well as the response of the isolation system to machine-induced inputs and/or environmental inputs.

Mode shapes (stiffness in each axis) identify any deformations, such as bending or twisting. In general, a structure's modes indicate the relative degree of structural stiffness among various points on that structure.

The finite element model will also indicate any stress concentrations in a structure. Stresses are related to the geometry of the structure and the distribution of loads and forces acting upon it. A stress analysis will indicate the magnitude of stress imposed by static and dynamic loading.

Fabreeka uses NASTRAN software to create finite element models of machine bases, foundations and other structures used in conjunction with isolation systems.