Versions of SSMTool:

Versions of SSMTool:

Contents

SSMTool 1.0

The first public version of SSMTool was provided by Ponsioen and Haller and allows for the computation of

Its algorithm relies on an initial modal transformation of the full dynamical system.

SSMTool 2.0

This updated pre-release version, SSMTool 2, due to Jain, Thurnher, Li and Haller computes the invariant SSMs directly from physical coordinates, thereby allowing for the treatment of much larger dynamical systems. It features the same methods as the first version and includes the computation of FRCs for the following Finite-Element Models (FEM):

SSMTool 2.1

In this official release of SSMTool 2.1, further examples are added to the library. Changes to improve the computational efficiency are employed as well.

SSMTool 2.2

This update to SSMTool2.2 allows for the treatment of systems with internal resonances by computing SSMs of higher dimensions. The changes include

SSMTool 2.3

In this version, SSMTool2.3 systems featuring algebraic constraints (DAEs) are included.

SSMTool 2.4

In SSMTool2.4 the treatment of systems with direct parametric excitation is enabled by computing higher order approximations to the non-autonomous manifold. The changes include

SSMTool 2.5

In SSMTool2.5 the support for the extraction of forced response surface and optimization of periodic orbits is provided. The changes include

Publications

A summary of the publications on SSM-Theory which are available thus far can be found here.