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ESEMPIO DI PRESENTAZIONE POWERPOINT PER TESI DI LAUREA – SCRIVERE TITOLO QUI

ESEMPIO DI PRESENTAZIONE POWERPOINT PER TESI DI LAUREA – SCRIVERE TITOLO QUI. Candidato Luigi Serbelloni Mazzanti Relatore Prof. Luigi Tizio Correlatori Prof. Pino Tizio Ing. Gino Tizio. Illustrazione opzionale qui in mezzo? (meglio se su fondo bianco). Introduzione.

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ESEMPIO DI PRESENTAZIONE POWERPOINT PER TESI DI LAUREA – SCRIVERE TITOLO QUI

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  1. ESEMPIO DI PRESENTAZIONE POWERPOINT PERTESI DI LAUREA – SCRIVERE TITOLO QUI CandidatoLuigi Serbelloni Mazzanti RelatoreProf. Luigi Tizio Correlatori Prof. Pino Tizio Ing. Gino Tizio Illustrazione opzionale qui in mezzo?(meglio se su fondo bianco)

  2. Introduzione • Nota: allego una dozzina di slide come esempio di PPT con foto/etc. • Multiple clearances: a numerical challenge… • Dry friction model • Rigid body assumption • Formulation as vector-measure differential inclusions • Solution by means of Second-Order Cone Complementarity Problem

  3. Introduzione • Clearances with dry friction sometimes are unavoidable: • Cheap devices: • Printers • Home appliances • … • Sturdy, rough mechanisms: • firearms, • earth-moving machines • harvesting machines • …

  4. Known approaches • Smooth ODE with deformable kinematic pairs • (ex. Hertz theory, FEM, regularization, etc.) • Problems: • - computationally expensive • - knowledge of material/geometry • Non-smoothdynamics with • piece-wise integration • (stop-and-restart schemes) • Problems: multiple contacts?

  5. Our approach • Assumptions: • - multi-rigid-body model • - N point-like contacts in clearances • - Coulomb dry friction model • Kinematic pairs with clearances: set of unilateral contacts with friction

  6. Revolute joints • In three dimensional case: Signorini’s complementarity condition

  7. Prismatic joint • For the three dimensional case, at most 16 unilateral contacts For all the edge-pairs, (l1, e4) (l1, e1) (l2, e1) (l2, e2) (l3, e2) (l3, e3) (l4, e3) (l4, e4) (l1, e8) (l1, e5) (l2, e5), (l2, e6) (l3, e6) (l3, e7) (l4, e7) (l4, e8) :

  8. Contact model • For each contact pair: • Vectors w and u • from Gram-Schmidt • Friction force: • Coulomb friction as maximum-dissipation principle (from Kuhn-Tucker form):

  9. Eccetera eccetera… • Modificare / inserire slide a piacimento • Usare liste con punti tipo questa quando possibile • Preferire immagini a descrizioni testuali • Meglio tante slide semplici piuttosto che poche complesse • Eccetera eccetera • Bla bla • Etc.

  10. Conclusioni • Pochi punti qui.. (sintetizzare principali conclusioni) • Bla bla… • Bla bla… • Bla bla… • Bla bla.

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