The theory of vibration is one of the fundamental topics in physics lessons. What often seems abstract in the classroom has direct implications in industrial practice. Twenty-eight pupils from the advanced physics class at Otto-Hahn-Gymnasium in Nellingen were able to see this for themselves on 2 June 2026 during a visit to Elektror airsystems.
Vibrations occur wherever something moves or is set in motion. But what happens when such vibrations occur in complex systems such as a rapidly rotating high-pressure fan? When do they become critical, and how can they be controlled? The pupils were able to explore this using a practical example.
Physics lessons meet industrial practice
Following a presentation on training and study opportunities at Elektror and the enormous range of ventilation applications, there was a brief theoretical introduction to the world of fan vibration technology.
The pupils then headed straight the technical centre at Elektror’s headquarters. There, a specially prepared A-HP 200 high-pressure blower was waiting for them. As it was ramped up to 8,300 revolutions per minute, a strong vibration was deliberately generated – clearly audible to everyone present.
The young people then took an active role: they fitted rubber buffers, dismantled the impeller and analysed the effects of the individual measures using a Campbell diagram. This enabled them to see directly which changes influenced the vibration behaviour and which measures did not result in any improvement.
Optimised vibration behaviour as a development goal
When designing high-speed, high-pressure blowers, the aim is to keep vibrations in the overall system as low as possible across a wide operating range. In particular, blowers that are continuously controlled via frequency converters place high demands on design, specification and vibration analysis.
As an educational partner of the Otto-Hahn-Gymnasium in Nellingen, Elektror airsystems regularly provides insights into the technical practices of an industrial fan and blower manufacturer. This enables pupils to see how the fundamental principles of physics they learn in class are applied in industrial settings – and how important they are for the development of high-performance and reliable products.
