Abstract
Mobile substations can be defined as completely equipped electrical
substations. There is a lack of existing scientific basis in the
mechanical design of the structural components of the mobile
substation. In concrete there are no capabilities to determine the
dynamic behavior during transport and service conditions. Improper
dimensioning of the structures results in an important degree of
mechanical failures during transport. The dynamic response of
structures on a mobile substation to transport-motions depends on their
strength of construction, ductility, and dynamic properties. Lightly
damped structures that have one or more natural modes of oscillation
within the frequency band of transport excitations can experience
considerable amplification of both the forces and deflections. Thus,
items of mobile substation equipment whose natural frequencies lie in
the normal frequency range of transport motion are particularly
vulnerable to damage and fatigue. Therefore we are interested in
analyzing the natural frequencies, damping ratios (modal parameters)
and level of accelerations of those components. The modal
identification methods recently developed at the Vrije Universiteit
Brussel, allow for estimating these modal parameters from operational
road testing data. Finally the dynamic behavior of interconnected
equipment will be discussed and some design recommendation will be
proposed.
substations. There is a lack of existing scientific basis in the
mechanical design of the structural components of the mobile
substation. In concrete there are no capabilities to determine the
dynamic behavior during transport and service conditions. Improper
dimensioning of the structures results in an important degree of
mechanical failures during transport. The dynamic response of
structures on a mobile substation to transport-motions depends on their
strength of construction, ductility, and dynamic properties. Lightly
damped structures that have one or more natural modes of oscillation
within the frequency band of transport excitations can experience
considerable amplification of both the forces and deflections. Thus,
items of mobile substation equipment whose natural frequencies lie in
the normal frequency range of transport motion are particularly
vulnerable to damage and fatigue. Therefore we are interested in
analyzing the natural frequencies, damping ratios (modal parameters)
and level of accelerations of those components. The modal
identification methods recently developed at the Vrije Universiteit
Brussel, allow for estimating these modal parameters from operational
road testing data. Finally the dynamic behavior of interconnected
equipment will be discussed and some design recommendation will be
proposed.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of ISMA2006: International Conference on Noise and Vibration Engineering, Vols 1-8 |
| Publication status | Published - 2006 |
| Event | Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet - Stockholm, Sweden Duration: 21 Sept 2009 → 25 Sept 2009 |
Conference
| Conference | Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet |
|---|---|
| Country/Territory | Sweden |
| City | Stockholm |
| Period | 21/09/09 → 25/09/09 |
Keywords
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