Documentation/Modules/ProblemTruss

Summary

The module ProblemTruss is a multi-objective optimization problem. It implements a simple construction problem with the goal to optimize a truss structure. The module constains a small Finite Element Analysis code for analysing a truss structure.

The truss consists of 10 rods which connect the 6 point (labelled from 0 to 5). At point 0 and 2, a force F=45'000N is applied, which deforms the truss and generates stresses in the 10 rods.

The input of this module are the individual cross-sections of the rods (i.e. 10 cross-sections).

The output of this modules are 3 values, which can be set either as objectives or constraints:

1. the weight of the 10 rods of the truss
2. the maximum stress in a rod
3. the maximum deflection of a node of the truss.

Properties

General

Algorithm	deterministic test function
Design Variables	10 continuous variables
Objectives	yes, 3 outputs which can be set either as objectives or constraints.
Constraints	yes, 3 outputs which can be set either as objectives or constraints.
Boundaries	yes, can be set as an option.
Initial Search Region	not set.
Typical X	not set.
Initialization	sets problem properties.

Connections

Starting at his module	-
Ending at this module	Connections of type optimization

Actions

Name	Description
-	-

Options

The options are currently described as "pop-up help".

Usage

-

Source Code

https://sourceforge.net/p/opendino/code/HEAD/tree/trunk/src/org/opendino/modules/problems/ProblemTruss.java

References

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