Posted on 1/14/2016
Unlike commonly used, torsionally elastic shaft couplings, the TNR is adjustable and therefore allows for a smoother start-up of power transmissions. This new, non-shiftable coupling made by RINGFEDER POWER TRANSMISSION is not only ideal for compressors, pumps, generators and crushers, but it is also perfectly suited for all fields of power generation using combustion engines, such as emergency power aggregates and mobile generators. Describing the challenge, Norbert Telaar, Strategic Product Manager, says, “When selecting couplings for power transmissions, we often had to make compromises if a very involved design preceded it.“ Given this observation, his team came up with the idea of developing a coupling that would allow for the rigidity to be adjusted within a wide range.
The challenging task for the engineers at RINGFEDER was this: When internal combustion engines, such as frequently used Diesel engines, are employed, the power train is subject to dynamic stimuli. The actual dynamic behaviour can be plotted mathematically by joining mass moments of inertia, damping and rigidity. When the excitation frequency and the natural frequency coi...