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Facts & Figures

Voith sets standards in the markets energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, Voith employs more than 42,000 people, generates €5.6 billion in sales, operates in more than 50 countries around the world and is today one of the biggest family-owned companies in Europe.

Sustainability

Ecological and social responsibility have priority at Voith. Acting sustainably is an essential element of our success. We are making our sustainability strategy transparent for the general public.

Overview

Urbanization

Rapidly growing megacities are a symbol of our times.

Ensuring mobility in these conurbations is one of the central challenges of the 21st century.

Engineers are researching

Ideas are the first step on the way to new technologies. Voith engineers are working on answers to central questions of the 21st century.

Innovations

Voith is a pioneer in respect of innovations and technology. With 11000 active patents and around 400 new patents each year Voith belongs to the top 20 patent applicants in Germany.

Energy transition

Moving away from fossil energy carriers and focusing on wind, sun and water: Voith supports the energy transition with technical solutions for regenerative power generation.

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Hydro Power

With renewable energies into the future – Voith relies on the potential of hydro power.

Recent Press Releases

17/06/2013 Increased availability and efficiency: Voith rebuilds tissue machine at WEPA
14/06/2013 Artic Tram Drives Quietly and Energy-Efficiently Through Helsinki - With Voith Traction Equipment
11/06/2013 Water weight measurement by Voith: safe and precise
07/06/2013 Steinbeis Papier Glückstadt: Voith LEF technology allows 37% energy savings in flotation
05/06/2013 Voith Paper expands its portfolio in combustion technologies
04/06/2013 Voith Modernizes Generators and Turbines at Inga I Hydropower Station in the Democratic Republic of Congo
04/06/2013 No compromises when it comes to safety – the new steam turbine controller “TurCon DTm” from Voith avoids unplanned downtime

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Test Engineering

On the Test Stand

Testing the Technology of the Future

All eyes are at the simulation: within the fraction of a second, the engine reaches the required number of revolutions per minute. First 600, then 1 000, then 900, then 2 500. The test goes up to 10 000 revolutions, up and down, measuring point for measuring point. The task is to establish the natural frequency of the engine: the critical point where the vibrations get out of control. Voith offers solutions that allow to shift resonance frequencies.

Test stands are used for exploring the technology of the future.

Abnahmeprüfung

Voith offers drive solutions for these applications, solutions that increase plant availability and reduce life cycle costs. But most of all they solve vibration problems.

How resonance frequencies work

A resonance catastrophe marks the point where periodically excited vibrations coincide with the natural frequency of a system. As a result of accumulating vibrations, the system breaks down. Soldiers marching in step can actually cause a bridge to collapse in this way. Glasses shatter when they are subjected to a sound level that corresponds to their natural frequency. And this can happen to engines, too.

When engines are smaller but more powerful

This also applies to the new engine of a renowned European manufacturer. The unit is on the test stand. It is smaller and lighter than its predecessors - and most of all: it is more powerful. Technology of the future. The weight reduction is meant to cut down on fuel consumption and CO2-emissions and optimize the downsizing efforts in vehicle construction.  But the higher excitation pressures inside the engine result in stronger torsional vibrations that cannot be brought under control.

Shifting resonance frequencies, damping torsional vibrations

Again and again the driveline gets damaged. Finding the critical point is a true challenge. Voith supplies the engineering for such tests, as well as highly flexible couplings that allow to shift resonance frequencies and dampen critical amplitudes. The engine can only be series-produced once this problem has been solved. For the OEM, time and development costs are at stake.

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