These are the details for the profile Eurostars2: Development of a damper and flexible coupling for a torsional vibration system in diesel engines.
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A Korean SME specialized in structural engineering is in the process of developing new torsion dampers and coupling for diesel engines. By joining the components of a damper and flywheel into one, the final product can be used in automobiles and marine engine systems. They seek European research & development institutes involved in mechanical engineering to develop and be interested in commercially exploiting the final product via a research cooperation agreement.
Current torsional vibration systems are based on old techniques which were invented 60 years ago. The old systems have a high level of risks with very heavy and low torque. The Korean SME has developed a flexible coupling which are half in weight and double in torque.
The SME manages the research, design, production, and marketing of their products. They have experience in the heavy industry and expertise in structural analyses of the torsional vibration system.
The company intends to market the finalised product as a component for clean diesel engines of passenger cars, marine diesel engines of marine propulsions, diesel engines of generators, reciprocating compressors, and in driving systems of electric cars and wind power generators.
To begin this project, several calculations and testing were involved. A leaf spring is a form of suspension typically used on trailers and a damper is a restraining device. A damping analysis was performed for structural vibrations and a stiffness calculation to determine spring flexibility. Using computer-aided software, a structural analysis of the leaf spring and a deformation analysis under forced torsion frequency helped determine some advantages of this concept.
Torque is a moment that can rotate a body around its axis. Torsion is the effect of the applied torque and is the twisting or deformation of the body. When stress is loaded on both sides of the spring, the increase in torque stress is double the normal amount. This creates a new united application of torque transfer and torsional vibration simultaneously. Using non pressurized construction for the fixation of internal parts require little to no strength. This allows non-ferrous materials to be used which are low in weight.
A coupling is a device that connects parts of a mechanism and a flywheel is a heavy disc located in engines that regulates rotation and maintains a constant speed. This gearing is part of torque transmission which is added to the torque of the engine. By coupling the damper and flywheel, the driving system reduces torsional vibration stress (fatigue on the coupling and torque transmission).
The SME has been developing and test running the prototype for three years and is in need of further funding and research in engine manufacturing and development. The SME is seeking a research cooperation agreement with R&D institutes in engine manufacturing (specifically the diesel engine of a passenger car) and currently working together with large enterprises for data collection and models of diesel engines in ship propulsions and generators.
Deadline for EOI: 1 February 2018
Deadline for Call: 1 March 2018
Project duration: 104 weeks
- New type of leaf spring is free at both ends
- Non pressurized ring for internal fixation
- Convergence into one component from damper and flywheel
Three registered patents in Korea
Type of partner sought
- R&D institutes
Specific area of activity of partner
- Research, testing, manufacturing, marketing
Tasks to be performed by the partner sought
- Research diesel engines’ data and models in ship propulsions and generators
- Research the manufacturing of diesel engines
- Market the product as a part of diesel engines