Pendulum rod
Supports that narrow towards the ends (adapted to the load) save material and are also used as an architectural style element. (Architect: Santiago Calatrava )
A pendulum rod or a pendulum support is a straight rod that is articulated at both ends. There are joints at the ends of the rods where no torque can be transmitted. Too large a pressure force a pendulum support fails by bending - wrinkles .
Compressive or tensile stress
A pendulum rod is systematically subjected to compression as a compression rod in a structure and is designed against failure due to buckling ( Euler case 2 ). If the rod is buckled, it can suddenly fail without any sign of deformation.
As a tension rod in a structure, a pendulum rod is only subject to tension.
Instead of a rod, a rope can then also be used.
Applications
In construction , vertical beams , pillars , supports , studs and posts can also be subjected to compression in their longitudinal direction. They are only referred to as pendulum rods or supports if the connection is articulated on both sides, provided that no external loads are applied.
To simplify the calculation, trusses are theoretically regarded as consisting of pendulum rods. In practice, their nodes are seldom designed as full-fledged joints .
In chassis technology , the connection of the stabilizer with a handlebar or the wheel carrier is referred to as a pendulum support .
Individual evidence
- ↑ a b Peter Wriggers, Udo Nackenhorst, Sascha Beuermann, Holger Spiess, Stefan Löhnert: Technical mechanics compact: rigid body statics, elastostatics, kinetics . 2nd Edition. Teubner, 2006, ISBN 3-8351-0087-4 , p. 46–47 , doi : 10.1007 / 978-3-8351-9066-5 ( limited preview in Google book search).
- ↑ Dieter Schramm, Benjamin Hesse, Niko Maas, Michael Unterreiner: Vehicle technology: Technical principles of current and future motor vehicles . de Gruyter Oldenbourg, 2017, ISBN 978-3-486-71620-7 . Fig.3.59 ( limited preview in Google Book search)
