[[http://personale.unimore.it/rubrica/contenutiad/ebertocchi/2023/75907/N0/N0/9999|Scheda del corso]]

===== Lecture Notes =====

{{ :wikipaom2023:dispensa_2022_v20220317.pdf |lecture notes}}, as on 20220317 (big endian), 135% scaled version.
Porzioni corrette:
  * {{ :wikimscp2023:oopshear_2023a.pdf |Paragrafo oop. shear aggiornato}}

{{ :wikiffcd2022:exam_formulary_20210607a.pdf |Exam formulary}}.

===== Laboratorio =====

[[:virtualcdmlab2023: | Terminal server lab for the 2023 courses]],

===== Videos =====

[[restricted:wikimscp2023_videos|Video delle lezioni, autunno 2023]].

[[restricted:wikipaom2023_videos|Video delle lezioni di "Progettazione assistita di strutture meccaniche" primavera 2023]].

===== Roba sparsa =====
FIXME

Reference L-shaped cross section, to verify the coupled bending formulas: {{ :wikiffcd2022:l-section.wxmx |maxima worksheet}},  {{ :wikiffcd2022:l-section.mud |Oxy}} and {{ :wikiffcd2022:l-section-rot.mud |G12}} oriented MSC.Marc/Mentat linear models. 
Large rotation, animated 
{{ :wikiffcd2022:l-section-largerots-hie.mud |hiE}}
{{ :wikiffcd2022:l-section-largerots-lowe.mud |lowE}}
models, {{:wikiffcd2022:l-section-largerots-hie_rotunitm.gif?linkonly|gif animation}}.

**Moti elementari per l'elemento piastra alla Mindlin.**

Colonne matrice //S// secondo paragrafo matrice massa, modello marc 
{{ :wikiffcd2022:monoelem_piastra_motielementari_singolidof.mfd |}}

Diverso set di modi elementari di deformazione, più ragionati in termini di stato deformativo indotto.
{{ :wikiffcd2022:modi_piastra_mindlin_v003.pdf |quad4 Mindlin plate elementary modes}}, {{ :wikimscp2023:drilling_modes_for_shear_locking.pdf |}}.





**Patch test for the plate element** {{ :wikiffcd2023:quad4plates_patch_test.wxmx |maxima worksheet}}, {{ :wikiffcd2023:macneal1985proposed_fig2_patch_test.mud |mentat model}}, {{ :restricted:macneal1985proposed.pdf |reference paper from literature}}.

==== Roller bearing questionable modeling ====

{{:wikipaom2015:singolarita_cuscinetti_tensioni.gif?200|}}
{{:wikipaom2015:singolarita_cuscinetti_cedimenti.gif?200|}}
{{:wikipaom2016:singolarita_cuscinetti_dubbia_modellazione.mud| modello marc/mentat}}

==== RBE2 vs. RBE3 ====
{{ :wikipaom2019:dimostratore_rbe2_vs_rbe3.mud |}}

==== Dynamics related stuff ====

** On the relevance of constraining in dynamic analyses **
[[https://www.youtube.com/watch?v=0GEj69NANc8|back view]] [[https://www.youtube.com/watch?v=RihcJR0zvfM|side view]] relevance of (improper) constraints on the dynamic behaviour of a structure.
Design is reliable in actual operational conditions ([[https://en.wikipedia.org/wiki/Boeing_CH-47_Chinook|link]]).
Added constraints stiffen up the structure, thus increasing natural frequencies.
However, a 0 Hz rigid body mode natural frequency may rise to a finite value due to added positioning constraints; the associate natural mode may be excited in resonance by dynamic loads.

**Poor man dynamic response animated view**

{{ :wikialtro2018:animacomp.proc | MSC.Mentat procedure for creating poor man harmonic response animations}}

{{ :wikifemfuchde2019:animamodipropri.proc | MSC.Mentat procedure for creating poor man natural mode animations}}


**Structural damping references**


{{ :wikipaom2017:structural_damping_values_jdstevenson.pdf |}}

{{ :wikipaom2017:damping_cross-reference_and_material_properties.pdf |}}

{{ :wikipaom2017:f_orban_damping_of_materials_and_members_in_structures.pdf |}}

{{ :wikipaom2017:tom_irvine_damping_in_bolted_and_welded_joints.pdf |}}

{{ :wikipaom2017:estratto_afwal-tr-84-3089v2_dampingvalues.pdf |estratto}} vol. 2, sezione 8 di Soovere, J., and M. L. Drake. Aerospace Structures Technology Damping Design Guide.LOCKHEED-CALIFORNIA CO BURBANK, 1985.

==== Instabilità ====
[[https://en.wikipedia.org/wiki/Euler%27s_critical_load|Buckling what?]], 
{{ :wikipaom2023:euler_beam_buckling_2023_noplv.wxmx |}},
[[https://cdm.ing.unimo.it/dokuwiki/wikifemfuchde2020/buckling|link to the FFCD 2020 course]]

==== Piede di biella 2d - contatti ====

Modello base: {{ :wikipaom2023:piede2d_meshed.mfd |}}

Contatto piede-bronzina: interferenza radiale 0.03 mm (corpi discretizzati in accoppiamento nominale senza gioco né interferenza)

Contatto bronzina-spinotto: gioco radiale 0.05 mm (corpi discretizzati con tale gioco di accoppiamento).

Carico sullo spinotto: 28.8kN, da distribuirsi su area diametrale 20,9x60 mm^2.

==== Instabilità ====
[[https://en.wikipedia.org/wiki/Euler%27s_critical_load|Buckling what?]], 
{{ :wikipaom2023:euler_beam_buckling_2023_noplv.wxmx |}},
[[https://cdm.ing.unimo.it/dokuwiki/wikifemfuchde2020/buckling|link to the FFCD 2020 course]]

===== Programma turni d'esame =====
Vedasi [[restricted:turni_esame_pt_pasm_paom|PT, PAOM, PASM, FFCD Exam schedules]].