Momenti i Inercisë

Momenti i inercise, i njohur gjithashtu si mase moment i inercise ose masa kendore, (njesite ne SI kg m2), eshte koncepti analog i mases per trupa ne rrotullim. Ndyshe aim und te kuptohet si inercia e nje trupi te ngurte ne rrotullim ne lidhje me piken e rrotullimit. Moment i inercise luan te njejtin rol ne levizjen rrotulluese qe masa luan ne dinamiken e thjeshte, kjo madhesi percakton lidhjet mes momentit kendor dhe shpejtesise kendore, krahut te forces dhe  nxitimit kendor, si dhe shume madhesive te tjera. Edhe pse nje trajtim i thjeshte skalar i momentit te inercise mjafton per nje pjese te mire rastesh, nje trajtim me i avancuar i bazuar ne analizen tensoriale duhet te behet per sisteme me te komplikuar si per trupat rrotullues apo per levizjen xhiroskopike.

Simboli $$I$$ ose ndonjehere  $$J$$ perdoren zakonisht per te treguar momentin e inercise.

Momenti i inercise u paraqit per here te pare nga Ojleri ne librine tij a Theoria motus corporum solidorum seu rigidorum ne 1730. Ne kete liber, ai diskuton me detaje te shumta momentin e inercise dhe koncepte te tjera te si, akset principale te inercise, te cilat kane te bejne me momentin e inercise.

Shikoni gjithashtu

 * Lista e momenteve te inercise
 * Lista e momenteve te tensoreve te inercise
 * Energjia rrotulluese
 * Teoreme e aksit paralel
 * Teorema e aksit perpendikular
 * Elipsoidi i Poinsots

Referenca

 * Goldstein H. (1980) Classical Mechanics, 2nd. ed., Addison-Wesley. ISBN 0-201-02918-9


 * Landau LD and Lifshitz EM. (1976) Mechanics, 3rd. ed., Pergamon Press. ISBN 0-08-021022-8 (hardcover) and ISBN 0-08-029141-4 (softcover).


 * Marion JB and Thornton ST. (1995) Classical Dynamics of Systems and Particles, 4th. ed., Thomson.  ISBN 0-03-097302-3


 * Symon KR. (1971) Mechanics, 3rd. ed., Addison-Wesley. ISBN 0-201-07392-7


 * Tenenbaum, RA. (2004) Fundamentals of Applied Dynamics, Springer. ISBN 0-387-00887-X

Lidhje te jashtme

 * Angular momentum and rigid-body rotation in two and three dimensions
 * A table of moments of inertia
 * Lecture notes on rigid-body rotation and moments of inertia
 * The moment of inertia tensor
 * An introductory lesson on moment of inertia: keeping a vertical pole not falling down (Java simulation)