Petter Krus

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The current development towards multiple processor cores in personal computers is making distribution and paral-lelization of simulation software increasingly important. The possible speedups from parallelism are however often limited with the current centralized solver algorithms, which are commonly used in today's simulation environments. An alternative(More)
This paper addresses a co-simulation method for fluid power driven machinery equipment, i.e. oil hydraulic machinery. In these types of machinery, the fluid–structure interaction affects the end-product performance to a large extent, hence an efficient co-simulation method is of high importance. The proposed method is based on a 1D system model representing(More)
The Modelica language offers an intuitive way to create object-oriented models. This makes it natural also to use an object-oriented solver, where each sub-model solves its own equations. Doing so is possible only if sub-models can be made independent from the rest of the model. One way to achieve this is to use distributed solvers by separating sub-models(More)
This work studies an innovate working hydraulic system design for mobile applications, referred to as flow control. The fundamental difference compared to load sensing systems is that the pump is controlled based on the operator's command signals rather than feedback signals from the loads. This control approach enables higher energy efficiency since the(More)
In this paper it is shown how a simple neuro-mechanical network can be configured and tuned to perform a certain task, using optimization based on simulation. This would have the potential of creating structures that could be trained and adapted to perform certain actions. The basic components hardly exist at present. The objective here, however, is to(More)
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