Rubber bushing

A vibration is a system for damping of mechanical vibrations (vibrations, shocks, bumps ). The aim is to convert kinetic energy into thermal energy. It is basically a distinction between the following two systems:

• General friction brakes - such as the (incorrectly as "shock absorbers " hereinafter) components of the vehicle technology, which are parts of the chassis - work independent of frequency and always need a " dormant " counterpart, such as the massive body.

• Resonant systems - so-called mass dampers or Tilgerpendel - can only dampen vibrations of a certain frequency, but do not require a " quiescent " counterpart. For this reason, they are used primarily in structural engineering, especially in very high buildings, used ( cf. resonance absorption of mechanical vibrations ). For example, the Berlin TV tower in its tip a vibration damper in the form of a Tilgerpendels; the masts of the Navy transmitter DHO38 have cylindrical thickenings, which are filled with granules to dampen wind-induced vibrations.

Vibration damping with steel poles

Also rope anchored steel tubular poles tend easy to wind-induced vibrations, so for vibration damping often there too granulate filled chambers, as has just been described, are attached. On the other hand rope anchored steel lattice towers show a lower tendency to oscillate, as they have a smaller frontal area.

Electricity pylons

Conductors of overhead line masts are excited by the wind to vibrate, so it can cause a short circuit or cable break. So-called Stockbridge vibration damper installed - Therefore here - especially with long clamping fields. These consist of a short piece of rope with weighted ends, which is clamped respectively near the suspension parallel to the bottom rope ladder.

Other possibilities are the vibration attenuation at power poles

• Additional weights on the insulators,
• Elastomeric bearing of the individual cables in the spacers of multiple conductors and
• Elastomer spirals to the ends of conductor cables to an optical fiber in the core.