Noise reduction in hydmulic systems has been an important research topic for several decades. LITH-IKP-R, ISSN 0281-5001 1391 National CategoryĮngineering and Technology Identifiers URN: urn:nbn:se:liu:diva-85981 OAI: oai::liu-85981 DiVA, id: diva2:574442Ģ005 (English) Doctoral thesis, comprehensive summary (Other academic) Abstract Place, publisher, year, edition, pages2003. With the technique presented, it is thus possible to investigate an optimal value for the cross-angle that the most beneficial impact on all factors that influence the noise level of the pump. The result from such a Pareto optimisation is not one optimal solution, but a set of optimal solutions. The trade-offs between the conflicting objectives considered are elucidated by using the concept of Pareto optimality. It is investigated how objective functions can be made up from peak-to-peak values as well as from frequency spectrum of signals. The cross-angle is designed using simulation-based multi-objective optimisation. In this paper, it is also investigated how the piston forces and the bending moments are influenced. It has in earlier works been described how the cross-angle enables minimisation of discharge and inlet peak-to-peak flow ripple for all displacement angles simultaneously. If designed correctly, the movement of the dead-centre points achieved by using a cross-angle coincides with the dead centres desired for optimal cylinder pre-compression and decompression for all displacement angles. The cross-angle is fixed and normally very small (1-4°). 2003 (English) Report (Other academic) Abstract īy implementing an additional incline (cross-angle) of the swash plate of an axial piston pump, in the direction perpendicular to the traditional displacement direction, the piston dead-centre points will move as the displacement angle varies.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |