"The merit of the project is to study and analyse the complex of factors causing rise of tool critical situation of disintegrating organs of machines for coal mining as well as of another rocks. Critical situation, when even sharp tool loses its working ability, is the parent of the increasing of cutting forces, vibrations, dust generation and energy consumption, of the decreasing of cutting performance and service life of cutting tools. Metodical approach will be addressed to solving of marginalized influence of tool peak body collision with rock being disintegrated and to solving the influence of marginalized kinematic tool slew, utilizing mathematical modelling of mutual interaction of cutting picks. It will determine ways for machine translational speed as well as principles of new tool concep. Metodical approach will incorporate also technical design of modification of laboratory testing device, measuring and evaluation of cutting forces during disintegration of coal and rocks."@en . "Podstatou projektu je studium a anal\u00FDza faktor\u016F zap\u0159\u00ED\u010Di\u0148uj\u00EDc\u00EDch vznik kritick\u00E9 situace n\u00E1stroj\u016F rozpojovac\u00EDch organ\u016F stroj\u016F pro ob\u00FDv\u00E1n\u00ED uhl\u00ED a jin\u00FDch hornin. Kritick\u00E1 situace, p\u0159i n\u00ED\u017E i ostr\u00FD n\u00E1stroj ztr\u00E1c\u00ED svou pracovn\u00ED schopnost, je zdrojem n\u00E1r\u016Fst \u0159ezn\u00FDch odpor\u016F, vibrac\u00ED, tvorby prachu a spot\u0159eby energie, poklesu rozpojovac\u00EDho v\u00FDkonu a \u017Eivotnosti n\u00E1stroj\u016F. Metodick\u00FD p\u0159\u00EDstup zahrnuje \u0159e\u0161en\u00ED opom\u00EDjen\u00E9ho vlivu kolize t\u011Bla n\u00E1strojov\u00E9ho hrotu s rozpojovanou horninou a vlivu kinematick\u00E9ho nato\u010Den\u00ED n\u00E1stroje s vyu\u017Eit\u00EDm matematick\u00E9ho modelov\u00E1n\u00ED vz\u00E1jemn\u00E9 interakce \u0159ezn\u00FDch n\u00E1stroj\u016F, zahrnuje studium cest ke zv\u00FD\u0161en\u00ED postupov\u00E9 rychlosti stroje a stanoven\u00ED z\u00E1sad koncepce nov\u00E9ho n\u00E1stroje, n\u00E1vrh \u00FAprav laboratorn\u00EDho za\u0159\u00EDzen\u00ED, m\u011B\u0159en\u00ED a hodnocen\u00ED silov\u00FDch \u00FA\u010Dink\u016F \u0159ezn\u00FDch n\u00E1stroj\u016F p\u0159i rozpojov\u00E1n\u00ED uhl\u00ED a hornin, studium a m\u011B\u0159en\u00ED vlivu p\u016Fsoben\u00ED vodn\u00EDho paprsku na sn\u00ED\u017Een\u00ED \u00FArovn\u011B \u0159ezn\u00FDch sil a n\u00E1vrh testu rozpojitelnosti pro spolehliv\u00E9 predikace v\u00FDkonu stroje." . . . . . . "0"^^ . . . "Research of critical state of cutting tools for coal-getting machines"@en . "IAA2086801" . . "1"^^ . . "http://www.isvav.cz/projectDetail.do?rowId=IAA2086801"^^ . "Vytvo\u0159ena z\u00E1kladna teoretick\u00FDch a experiment\u00E1ln\u00EDch poznatk\u016F procesu rozpojov\u00E1n\u00ED hornin ku\u017Eelov\u00FDm \u0159ezn\u00FDm n\u00E1strojem. Vypracov\u00E1n n\u00E1vrh \u0159ezn\u00E9ho n\u00E1stroje nov\u00E9 generace (PV 2000-4570)."@cs . . . "0"^^ . "4"^^ . "4"^^ . . . . "V\u00FDzkum kritick\u00E9ho stavu \u0159ezn\u00FDch n\u00E1stroj\u016F dob\u00FDvac\u00EDch stroj\u016F" .