Geology Reference
In-Depth Information
KEY TERMS AND DEFINITIONS
Shape Optimization:
Finding the best shape
of the elements of a structural system in which
the overall layout, topology and connectivity of
the elements is previously determined is known
as shape optimization.
Sizing Optimization:
Finding the optimum
dimensions of the elements in a structural system
when the overall layout, connectivity and shape
of the elements are fixed is termed as sizing
optimization.
Topology Optimization:
The problem of
finding the best topology and layout of the ele-
ments of a structural system is known as topology
optimization.
Compliance Minimization:
In structural
optimization under static loads, minimizing the
mean compliance is equivalent to maximizing
the structural stiffness. Under dynamic loads, the
average of mean compliance over a cycle can be
considered as an objective function.
Eigenfrequency Control:
Topology optimiza-
tion techniques can be used to increase or decrease
any of natural frequencies of a structural system.
Passive Dampers:
These devices are used
to enhance the energy dissipation capability of
structural systems to mitigate seismic hazard.
Sensitivity Analysis:
In solving an optimiza-
tion problem, finding the derivatives of the objec-
tive function with respect to the design variables
is sometimes referred to as sensitivity analysis.
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