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sisvu:academicYear 2005 (xsd:int)
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sisvu:description Cilj i zadaća teorije mehanizama. Definicije mehanizama i strojeva. Kratki povijesni pregled teorije mehanizama. Strukturna analiza mehanizama. Kinematički par. Stupnjevi slobode gibanja. Kinematički lanci. Oblikovanje mehanizama. Analitičko i grafičko određivanje brzina i ubrzanja točaka mehanizama. Trenutni polovi brzina. Uvod u dimenzionalnu sintezu štapnih mehanizama. Sinteza mehanizama za koordiniranje gibanja pogonskog i radnog člana. Grafičke i analitičke metode sinteze. Sinteza mehanizama s dva, tri i više od tri zadana položaja. Brzopovratni mehanizam, zglobni četverokut kao brzopovratni mehanizam, krivulje sprežnih članova, mehanizmi za pravocrtno vođenje. Krivuljni mehanizmi. Kinematička analiza. Konstrukcija profila grebena. Određivanje brzina i ubrzanja, minimalnog polumjera grebena. Zupčanički mehanizmi s nepomičnim osima. Epiciklički prijenosnici s jednim ili dva stupnja slobode. Diferancijalni mehanizmi. Prvi kolokvij Dinamika mehanizama. Uvod u statiku i dinamiku mehanizama. Određivanje inercijskih sila. Kinetostatika mehanizama. Određivanje reakcija u kinematičkim parovima. Dinamika pogonskog člana. Utjecaj trenja na gibanje mehanizama. Metoda redukcija sila i masa. Jednadžba gibanja mehanizma. Analiza sila kod nekih tipova mehanizama. Uravnotežavanje mehanizma. Kinematika i dinamika motornog mehanizma, konstrukcije motornog mehanizma, sile i momenti, ekvivalentne mase, zamašnjaci. Dinamika krivuljnih mehanizama, dinamička analiza sila, gibanje sistema sa i bez prigušenja, zakretni moment grebena. Drugi kolokvij (hr)
sisvu:description The aim of theory of kinematics and dynamics of machanisms. Definitions of mechanism and machine. Short historical overview of mechanisms. Structural analysis of mechanisms. Kinematic pairs. Mobility. Linkages. Design of mechanisms. Analytical and graphical velocity and acceleration solutions. Instantaneous relative velocity centre. Introduction in dimensional synthesis of simple planar mechanismas. Synthesis of mechanisms for coordinating input and output motion. Graphical and analytical synthesis methods. Synthesis of mechanism with two and three given position. Quick return mechanism, four bar mechanism as quick return mechanism, mechanisms generating a straight line motion. Cam mechanism. Kinematic analysis. Cam profile design. Velocity and acceleration solutions. Determination of a minimal cam radius. Fixed axis gear transmition. Epicyclic gear transmition with one and two degrees of freedom (differential gear transmition) Mid-term exam Dynamics of mechanisms. Introduction in static and dynamics of mechanisma. Determination of inertial forces. Kinetostatics of mechanisms. Determination of constraint forces. Dynamics of input member. Friction influence on mechanisms motion. Principle of mass and force reduction. Equation of motion of mechanism. Forces analysis for some basic mechanisms. Balancing. Dynamics of slider-crank mechanism, design, forces and moments, equivalent masses, flywheel. Dynamics of cam mechanisms, force analysis, motion without and with damping, torque. Final exam (en)
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