SAFER. FASTER. BETTER.
On the search for untrodden paths, a partnership with V-Research brings decisive competitive advantages. The industrial application of the new knowledge has a clear orientation:
achieving results that can be implemented quickly for the best possible benefit and success of industry partners.
V-RESEARCH OPTIMISES PRODUCTION COSTS.
AT THE DEVELOPMENT STAGE.
More than 70 per cent of the potential for cost optimisation in product creation lies in the planning and development stage, with a further 18 per cent in production planning. In the context of this potential, V-Research develops automation solutions that impress with their usefulness, technical performance and handling.
In industrial projects, V-Research focuses on the following:
So that we play a part in determining the direction of tomorrow's automation of complex design and development processes, we are already working on forward-looking innovations today.
A software algorithm automatically derives the design methodology from existing CAD models and by observing the design decisions of an experienced designer during the design process. The design methodology is reflected in a rule base. No additional effort is required on the part of the designer. The design expertise is modelled, documented and secured for the company. The self-learning system minimises consultancy costs.
V-Research works on combining the emulation of machines and systems with intelligent algorithms and automated design in order to transfer the advantages of the automated system configurators to the design of production systems while optimising the dynamic system parameters – i.e. the production capacity. The automatically generated system configuration is used to generate the tender, the 3D model of the system and the CAD drawings automatically and with minimum effort.
WELL-GROUNDED. THE SURFACE.
V-Research realises your product ideas and increases the value of your existing products. By taking account of tribological mechanisms of action and interrelationships, the scope for solutions for your applications is systematically investigated in order to expand the limits of use or to tap into new markets. In terms of optimising existing products, concrete improvements are seen in the lower energy and raw-material costs, higher machine availability, lower maintenance costs, and savings due to longer inspection and servicing intervals and less wear. The development of application-specific tribodesigns increases the safety and reliability of products and production processes.
Main aims of tribology:
Although only a fraction of the aforementioned losses can be avoided through targeted tribological measures, the order of magnitude of these losses means that the achievable savings are considerable in absolute terms.
With regard to tribodesign, V-Research's research focuses on the following:
Stick-slip is a frequently observed negative behaviour in sliding friction systems. From a macroscopic perspective, this behaviour occurs when the coefficient of friction decreases as sliding speed increases, as occurs, for example, in the case of boundary friction in the transition from sticking to sliding. In order to reduce stick-slip, attention should be paid in particular to the (chemical or mechanical) adhesive components of the friction force.
Especially with polymer materials, the sliding behaviour in tribological systems can depend significantly on the surface energy. Here, a differentiation can be made between polar and nonpolar polymers. With respect to nonpolar polymers (PE, PTFE, …), polar plastics (PA, POM, PVC, …) usually have the advantage of being stronger, but at the same time the disadvantage that (chemical) bonds also develop more strongly at the boundary contact surfaces, which in turn leads to higher coefficients of friction. The search for an optimum sliding pair is made more complicated by the fact that the change in the friction forces with surface roughness also depends on the polarity of the materials – depending on the polarity, the coefficient of friction can decrease or increase with roughness. One solution can be to functionalise the bulk material and the surface.
Good wettability of tribological working surfaces is usually necessary in order to achieve a good lubricating effect. There are, however, also exceptions: in tribosystems with lubricated diamond-like carbon (DLC) coatings, lower coefficients of friction can be achieved if the lubricant wets the surface poorly: in DLC-coated tribosystems, the greatest friction losses occur in the form of viscosity losses in the lubricant. If it can be achieved that the lubricant already has a somewhat higher relative speed on the material surface, these losses can be reduced. This is the case if the lubricant interacts less strongly with the DLC surface or wets it more poorly.