"2015-01-01+01:00"^^ . . "http://www.isvav.cz/projectDetail.do?rowId=TA04020613"^^ . . . "Research and control of instability effects in steam turbo-sets"@en . . . "V\u00FDzkum a \u0159\u00EDzen\u00ED \u00FA\u010Dink\u016F nestabilit v parn\u00EDch turbosoustroj\u00EDch" . "The main objective of the project is to develop a new methodology for the analysis and understanding of seal influence on the behaviour of steam turbo-sets. The methodology will enable to comprehensively solve the turbo-set dynamics and vibration in order to predict and prevent any unstable behaviour. The main advantage of this approach should be an increase of reliability and durability guaranteeing the maximum efficiency of the turbo-sets. The investigation of accompanying effects, occurring during the turbo-set operation, will be carried out on a theoretical and experimental levels. On the theoretical level, the investigation will address the dependence of the steam flow in the seals on the motion of the turbine rotor by implementing the discontinuous Galerkin finite element method. After linearisation, the approach will make it possible to determine the stiffness and damping matrices of the seals and to complete the mathematical model of the whole turbo-set. The experimental part of the project will be aimed at the development of methods and algorithms for the identification of seal properties on the basis of measurements in a seal stand. The design of this stand will be a part of this project, but its production will be funded by Doosan Skoda Power. To achieve desired orbits of selected turbine rotor points, the seal stand will include magnetic bearings with active control. As a result, robust control algorithms will be developed and implemented in corresponding software modules. The main contribution of the experiments will be validation of the newly developed methods for seal computation and determination of turbine rotor sensitivity to the change in seal parameters. In the last year of the project, a new type of seal will be designed based on the newly developed and experimentally validated computational methods. The new methodology and software will be also applicable t o any seal type not only in steam turbines, but also in gas turbines and generators."@en . . "seal- steam flow- vibration- turbo-set- rotor dynamics- time-frequency analysis- experimental measurement- identification- active control- magnetic bearings"@en . . . . . . . . "1"^^ . "0"^^ . . . "1"^^ . . "0"^^ . "Hlavn\u00EDm c\u00EDlem projektu je vyvinut\u00ED nov\u00E9 metodiky pro posouzen\u00ED a pochopen\u00ED vlivu ucp\u00E1vek na chov\u00E1n\u00ED parn\u00EDch turbosoustroj\u00ED. Tato metodika umo\u017En\u00ED komplexn\u011B \u0159e\u0161it probl\u00E9my souvisej\u00EDc\u00ED s dynamikou a vibracemi rotor\u016F t\u011Bchto turbosoustroj\u00ED, s c\u00EDlem predikovat a p\u0159edch\u00E1zet nestabiln\u00EDmu chov\u00E1n\u00ED a t\u00EDm zv\u00FD\u0161it jejich spolehlivost a \u017Eivotnost a sou\u010Dasn\u011B zajistit jejich maxim\u00E1ln\u00ED \u00FA\u010Dinnost. V\u00FDzkum doprovodn\u00FDch jev\u016F, kter\u00E9 se p\u0159i provozu turbosoustroj\u00ED vyskytnou, bude prov\u00E1d\u011Bn v teoretick\u00E9 i experiment\u00E1ln\u00ED rovin\u011B. V teoretick\u00E9 rovin\u011B bude prob\u00EDhat vy\u0161et\u0159ov\u00E1n\u00ED z\u00E1vislosti proudov\u00E9ho pole p\u00E1ry v ucp\u00E1vk\u00E1ch na pohybu turbinov\u00E9ho rotoru pomoc\u00ED nespojit\u00E9 Galerkinovy metody kone\u010Dn\u00FDch prvk\u016F, co\u017E povede po linearizaci ke stanoven\u00ED matic tuhosti a tlumen\u00ED ucp\u00E1vek a ke zkompletov\u00E1n\u00ED celkov\u00E9ho matematick\u00E9ho modelu turbosoustroj\u00ED. V experiment\u00E1ln\u00ED rovin\u011B bude prob\u00EDhat v\u00FDvoj metod a algoritm\u016F pro identifikaci vlastnost\u00ED ucp\u00E1vek na z\u00E1klad\u011B m\u011B\u0159en\u00ED z\u00EDskan\u00FDch na ucp\u00E1vkov\u00E9m standu, jeho\u017E n\u00E1vrh bude sou\u010D\u00E1st\u00ED tohoto projektu, av\u0161ak v\u00FDroba bude financov\u00E1na z vlastn\u00EDch zdroj\u016F firmy Doosan \u0160koda Power s.r.o. Sou\u010D\u00E1st\u00ED ucp\u00E1vkov\u00E9ho standu budou magnetick\u00E1 lo\u017Eiska, jejich\u017E aktivn\u00EDm \u0159\u00EDzen\u00EDm budou dosa\u017Eeny po\u017Eadovan\u00E9 tvary orbit vybran\u00FDch bod\u016F rotoru turb\u00EDny. V\u00FDstupem budou robustn\u00ED \u0159\u00EDdic\u00ED algoritmy a jejich implementace do p\u0159\u00EDslu\u0161n\u00FDch softwarov\u00FDch modul\u016F. Hlavn\u00EDm p\u0159\u00EDnosem experiment\u016F bude validace nov\u011B vyvinut\u00FDch metod v\u00FDpo\u010Dt\u016F ucp\u00E1vek a zji\u0161\u0165ov\u00E1n\u00ED citlivosti chov\u00E1n\u00ED turbinov\u00E9ho rotoru na zm\u011Bnu jednotliv\u00FDch parametr\u016F ucp\u00E1vek. Bude odzkou\u0161en nov\u00FD typ ucp\u00E1vky, kter\u00FD bude navr\u017Een na z\u00E1klad\u011B nov\u011B vyvinut\u00FDch a experiment\u00E1ln\u011B prov\u011B\u0159en\u00FDch v\u00FDpo\u010Dtov\u00FDch metod. Nov\u011B vyvinut\u00E1 metodika a programov\u00E9 vybaven\u00ED budou pou\u017Eiteln\u00E9 rovn\u011B\u017E pro obecn\u00FD typ ucp\u00E1vek nejen v oblasti parn\u00EDch turb\u00EDn, ale i pro plynov\u00E9 turb\u00EDny, \u010Di gener\u00E1tory." . . "TA04020613" . . "2017-12-31+01:00"^^ . "0"^^ . "2015-05-05+02:00"^^ . .