How Geislinger innovations reduce noise emissions from large onshore wind turbines

Last year, in May, the third Torsional Vibration Symposium was held in Salzburg. One of the papers contributed by Geislinger was presented by Karina Windhofer, a specialist in the calculation of torsional vibrations. She explained the recent developments of simulations and measurements of torsional vibrations for torsional elastic couplings and how they were analyzed.

As demand for clean energy from renewable sources increases, wind energy is becoming an incomparably important player. While offshore wind farms are thriving, legislation and social acceptance of onshore wind power are proving to be difficult factors. As onshore turbines get larger, NVH (Noise, Vibration, Harshness), emanating mainly from the drivetrain, becomes a serious challenge.

With a focus on Geislinger Digital Solutions as well as customized solutions for innovative hybrid drives, Geislinger presented its latest product innovations that meet the challenges of the maritime industry at SMM 2022.

The MV Polar Pioneer was built in Finland 40 years ago. It is one of 10 Akademik Shuleykin-class ships built in the mid-1980s for the Soviet Union's oceanographic research purposes. Originally, the ship was an ice-strengthened research vessel with ice class 1A Super, suitable for navigation in polar regions with heavy sea ice. From the mid-1990s, about half of these very solid ships were used as chartered polar expedition vessels.

On June 22, 2022, Geislinger participated actively at the shipping companies meeting of the German Shipbuilding Society (STG). The event was held at the historic storage building “Schuppen 9” in Lübeck, Germany.

Increasingly complex electric and hybrid drive systems demand sophisticated solutions, such as the tailor-made coupling, damper and shaft solutions by Geislinger. On the road to hybridization, the shipping industry is facing new challenges every day. This is why our innovation department is constantly striving to develop breakthrough solutions for new hybrid powertrain requirements.

The third Torsional Vibration Symposium was held at Salzburg Congress from 11-13 May, 2022. Geislinger was the platinum sponsor of this event with about 200 participants from Europe, the United States, Canada and Asia. For most of the guests it was the first personal meeting after the long covid break.

After a two-year delay caused by the pandemic, the Geislinger Team is looking forward to personally attending the Torsional Vibration Symposium, May 11-13 in Salzburg. Our innovation specialists will participate with several presentations.

After successfully conducting a pilot installation on the MSC La Spezia (one of the vessels of the so called 'Italian Fleet' named after Italian cities), monitoring the Torsional Vibrations of the main propulsion with a MAN 2-stroke engine and implementing the Geislinger Analytics Platform, CPO Containerschiffreederei announced that they will proceed with the installation of Geislinger Mk6 along with the Digital Services on the rest of their fleet, which comprises 8 vessels.

Geislinger’s smart glasses, branded “Geislinger Smart Vision”, are the next step in digitalizing Geislinger’s Service Activities. In theory, “Geislinger Smart Vision” is like a head-mounted tablet and in practice, it allows Geislinger service engineers to access applications such as video calls with real-time video transmission, files & documents, and various browser-based solutions while keeping both hands free to work.

In August 2021, Geislinger was invited to participate in the session for underwater acoustics at the DAGA International Conference on Acoustics in Vienna.

Locomotives play an important role in transporting goods and support global trade. To ensure the timely delivery of goods, the US locomotives in particular need a reliable diesel-electric power system to power the locomotive. Geislinger has been a trusted industry leader in providing torsional dampers and couplings for locomotive applications.

On May 19th, 2021, the Torsional Vibration Symposium webinar was successfully held with over 400 online participants from more than 50 countries. During the Symposium, Dr. Klaus Prenninger, Head of the Torsional Vibration Calculation team at Geislinger, informed the audience about emission reduction strategies for large bore combustion engines. One important factor is the fuel itself. The new technologies applied in the developments to use different fuels can have massive impacts on torsional vibrations.

Geislinger’s Powertrain Solutions provide wind turbine manufacturers a significant advantage in the race for robustness, availability, and reliability.

For the purpose of illustrating the effectiveness of the gear integrated Geislinger Coupling, a 3D-multi-body simulation of the gear train of a combustion engine was carried out by the Austrian engineering heavyweight AVL on behalf of Geislinger. The pre-post study confirms that a Geislinger powertrain solution is effectively solving the problem at its origin, at the location of the excitations.

The combination of the new Geislinger GMSMk6 monitoring system and Geislinger Digital Services leads to the creation of an artificial supported analytics platform in order to enable maximum safety and reliability of your powertrain.

Geislinger provides tailor-made and long-lasting product solutions for next-generation drivetrains and offers the appropriate product solution for both geared and direct-driven wind turbines to ensure the reliability and availability of the drivetrain on the one hand, and to effectively reduce noise emissions and avoid tonalities on the other.

At the production site in Bad St. Leonhard, Geislinger has completed the largest construction project in the company’s history. The ultra-modern and highly productive plant with state-of-the art technology secures the production location in Austria and thus lays the groundwork for the company’s future.

Today’s drivetrain systems have to deal with several challenges, influencing the dynamic behavior and the torsional vibrations of a system.

Talking about torsional vibrations, many people have just combustion engines in mind. However, when using reciprocating compressors, quite similar vibration issues apply.

Innovation is vital to increase efficiency and reduce carbon emissions from heavy-duty trucking. The heavy-duty trucking industry hauls approximately 80 percent of the goods in the United States and uses approximately 28 billion gallons of fuel per year.

Critical Mining Ventilation Systems provide clean air to workers, clear hazardous gases and dust from drilling and blasting activity and help regulate temperature deep inside the mine. Due to the critical nature of these systems, they require specifically engineered solutions that ensure maximum reliability and performance.

For many years, Geislinger has supported any means to protect our valuable environment. Its success has been validated by the company’s internal environmental programme and continuous re-certification of the ISO 14001 standard.

Innovative engineering solutions are advancing vessel designs. For state-of-the-art vessels, weight, reliability, and serviceability are the most important considerations. Geislinger’s carbon fiber shafting solutions offer operators the lightest weight system which reduces bearing loads for other propulsion equipment significantly.

In September 2019, Geislinger was invited to open the session for acoustics of ships and offshore structures at the International Congress on Acoustics (ICA) in Aachen, Germany.

The Geislinger Gesilco® product line offers individually customized solutions for various rail applications. The smallest installation space, high temperatures as well as leakage currents are demanding challenges for rail power units.

Geislinger will once again participate at the Husum Wind exhibitions this year. Visit us at the leading Wind Power Show in Europe and learn more about Geislinger’s coupling and damper solutions for wind drivetrain systems.

Geislinger presented the study results about “Capabilities of Transient Simulations in the Torsional Vibration Damper Selection” during CIMAC 2019.

Geislinger’s couplings and dampers pave the way for innovative solutions for electric & hybrid drive systems.

Salzburg’s Business Award WIKARUS is the most prestigious award for outstanding entrepreneurial and innovative achievements in Salzburg, Austria.

From spare parts supply to global service agreements, we develop together with our customers whatever level of service is preferred and the ideal solution for any individual demand.

Geislinger Dampers with an outer diameter of five meters can be produced at Geislinger Korea Ltd.

Geislinger will once again participate at the Torsional Vibration Symposium and contribute to the exchange of the latest technologies and technical trends in the field of torsional vibrations.

The new Gesilco® Composhaft® coupling is based on advanced fibre composite materials. The coupling is extremely lightweight and has a fully integrated design, which can be adapted to the specific needs of many applications.

Geislinger’s participation at SMM 2018, the world’s leading trade fair for the maritime industry with over 2,200 exhibitors and about 50,000 visitors from all over the world, was again a great success.

The compact and lightweight Gesilco® design paves the way for great opportunities.

Geislinger GmbH celebrates its 60th anniversary this year which coincides with 25 years of experience in manufacturing products made from fibre composites. Sold under the brand-name Gesilco® these products underline the innovative spirit of the company.

Geislinger GmbH, a family owned company, is celebrating its 60th anniversary this year. Today, the third generation follows the path to provide customers with innovative and long-lasting products. Innovation, engineering and creative product solutions combined with the passion to be always one step ahead is one of the secrets of Geislinger’s success.

For many years cruise ships have been getting constantly bigger and more luxurious. This year two new giants enter the expanding market in the Caribbean and in the Mediterranean Sea – with Geislinger technology on board.

Geislinger Compowind® Coupling for the very first time presented in Beijing – marine exhibitions in Shanghai and Busan very well attended.

In order to select the optimal coupling in terms of size, reliability and specific application requirements, Geislinger provides many different coupling solutions. This article discusses options for sound-sensitive installations.

Geislinger Couplings and Dampers have to resist high loads while sailing in stormy weather – furthermore, load to the system is increased due to the energy efficiency index.

Advances in design, material and drivetrain testing resulted in substantial improvements of wind turbine reliability. But with continuous growth in size, the risk of gearbox damage appears to be back on the agenda, and further upscaling of conventional drivetrain designs is limited and might require an alternative design.

On US waterways, tug- and push boats are essential for transporting bulk and over-sized goods on large barges from point to point. These powerful boats have to be available 24/7. Therefore, reliability and uptime are crucial factors. To fulfil their tasks, many of these vessels rely on the long-lasting Geislinger couplings.

More than 220 participants from over 20 countries gathered together for the second Torsional Vibration Symposium to discuss the latest findings in the field of torsional vibrations.

From torsional vibration calculation to the monitoring of the system – Geislinger delivers everything from a single source and offers worldwide service.

The need to improve the operational efficiency of mining fleets has increased in the last few years, therefore mining trucks keep on getting bigger and bigger. Operating in mostly harsh conditions the reliability and long-service life of these giants is crucial.

Geislinger GmbH will contribute two papers to be presented in the sessions “Powertrain Components – elastic couplings” as well as “Engine Development – future concepts.” Furthermore, the collaboration between Geislinger GmbH and Renk AG will be one subject of the session “Noise and Vibration”.

The success of Geislinger GmbH in Salzburg (Austria) is based on a global network of subsidiaries and service partners. Due to qualified and motivated staff all around the world, Geislinger holds a major role as solid and competent development partner worldwide and is renowned for its leading role as innovation and market leader.

Bold and daring architecture, composed of light, glass, and transparency translate Geislinger’s mission statement “Leaders in Engineering” on to the new office building in Carinthia.

The launch of the new Geislinger Silenco® Coupling at SMM 2016 was a great success. Visitors could experience the acoustic attenuation of the Silenco® Coupling on their own, a truly unique experience.

The reduction of engine noise is one of the major issues that modern passenger ships as well as many other applications are struggling with. Over the course of recent years, more and more governmental and international regulations concerning the limitation of the environmental noise have been implemented.

Street lights designed and manufactured by Geislinger reflect the Headquarter’s innovative approach and create an ideal connection between interior and exterior.

The Geislinger Compowind® is suitable for various wind turbine drivetrain concepts. According to the different demands of wind turbine manufacturers, the weight-saving coupling can be individually customized and integrated into the individual drive-train layout.

Used on one of the most renowned offshore wind turbines, the Geislinger Compowind® coupling gives OEMs a competitive lead in the race for robust and reliable drive-trains. The Pre-Post Study results of the new Geislinger wind power coupling are of great interest for developers, decision-makers, and technicians in the wind industry.

The dynamics of damper and coupling qualification as well as the demand forecasting for locomotives and rail related activities are a central part of the Geislinger efforts. The company has earned a solid reputation in the US and North America for products that are “Built to Last”.

In 1973, Geislinger hired their first ever apprentice. He has stayed with Geislinger up to this day and enriches the company with his experience.

Cruise lines offer tourists new and even more exotic destinations all around the world. Several tours are being offered during the festive days around Christmas.

Geislinger has developed with the Vdamp® a high-end product in the field of viscous dampers. This damper can be produced up to a diameter of 4 metres at the Geislinger factories in Austria, China or Korea.

Geislinger is well prepared for future challenges in the field of fibre composite products. Shafts up to 10 meters can be manufactured at the new Geislinger production site in Carinthia/Austria.

The Asian market is an important field for Geislinger couplings and dampers. The sizes of Geislinger Korea’s production units range from 0.5 up to more than 4 meters in diameter.

Geislinger regards Austria’s economic location as an important key for success and has invested in the expansion of the production facilities at its headquarters in Salzburg and at its production site in Carinthia.

The Rockfort Diesel Station in Jamaica is equipped with a Geislinger Damper D 220/2. After more than 178 000 hours in operation, the damper is still in its best condition.

Wind power is at the moment the fastest growing sector of electricity production in the world. The technical standards of wind turbine manufacturers are steadily rising.

Despite the increasing electrification of the railway infrastructure, diesel locomotives still play a major role on the railroads in most countries.

The legendary oceanographic research vessel “Professor Multanovskiy” was one of the first expedition vessels with which tourists could regularly travel to the Antarctic in smaller groups.

The Geislinger Gesilco® Disc claims to be the state of the art coupling for closed coupled alternator applications.

The largest CRP-coupling ever produced at Geislinger is a BE 280/60/140U with a GMS Mark 4. Ten years ago this 36 ton coupling was installed in a VLCC mega-tanker.

The new Geislinger Compowind® couplings offer the possibility to connect windturbine blades with gears or direct driven generators.

The Geislinger Gesilco® coupling has been designed to compensate radial, axial and angular misalignments.

The Geislinger Monitoring system GMS is a torsional vibration measurement and monitoring system for large diesel engines.

In many cases, torsional vibrations are a reason for the generation of noise emissions. The primary path of these sound transmissions usually goes from a source like the engine through the engine mount into the surrounding structure.

The first Torsional Vibration Symposium was held in Salzburg from May 21st until May 23rd.

Compliance with future emission regulation standards has been one of the main development targets for the large engine industry during the last years.