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====== Progettazione Assistita di Organi di Macchina, primavera 2022 ======
[[restricted:virtualcdmlab2021|Virtual CdM lab 2021+ shortcut]].
===== Lecture Notes =====

{{ :wikipaomffcd2022:dispensa_2021_v20210907.pdf |lecture notes}}, as of 2021-09-07 (big endian).

:!: [[wikiffcd2022:errata_dispensa_2021_v20210907|Errata corrige]]. :!:

{{ :wikiffcd2022:exam_formulary_20210607a.pdf |Formulario reso disponibile in sede d'esame}}.
==== Planar beam structure i.p. and o.o.p. loadings ====
The beam structure centroidal axis lies on a plane, which is also a symmetry plane for the cross-sections. 

Symmetric and skew-symmetric loads with respect to such a plane are called //in-plane// and //out-of-plane// loads, respectively. 

If the superposition of effects holds (e.g., if the structure behaves linearly) each load set only induces an associated subset of the possible components of internal action, see

{{:wikipaomffcd2022:planar_beam_structs_in_out_of_plane_loadings_v000.jpg?200|}}

==== Symmetric and skew-symm. parts of a general load ====
{{ :wikiffcd2022:symm_and_sksymm_parts.pdf.png?200 |}}
{{ :wikiffcd2022:symm_and_sksymm_parts.pdf |(ipe source)}}

A general load is applied to a symmetric structure in a); 
in b), c) the loads applied on each half structure is treated separately.
In d), e) the action on the loaded portion is halved, and symmetrically propagated to the other portion; 
those symmetric actions are accumulated in the **symmetric part** of the load f).
In g), h) the action on the loaded portion is halved, and skew-symmetrically propagated on the unloaded portion; those skew-symmetric actions are accumulated in the **skew-symmetric part** of the load i).

===== Rollbar-like frame =====
Maxima worksheets:
{{ :wikipaomffcd2022:rollbar_v0001.wxmx |v0001}}, 
{{ :wikipaom2022:rollbar_v0003p.wxmx |v0003}}, 
{{ :wikipaom2022:rollbar_v0004p.wxmx |v0004}},
{{ :wikipaom2022:rollbar_v0005p.wxmx |v0005}},
{{ :wikipaom2022:rollbar_v0006p.wxmx |v0006}},
{{ :wikipaom2022:rollbar_v0007p.wxmx |v0007}},
{{ :wikipaom2022:rollbar_v0007p_checkme_insert.wxmx | controllo}},
{{ :wikipaom2022:rollbar_v0008p.wxmx |v0008}},
{{ :wikipaom2022:rollbar_v0009p.wxmx |v0009}},
{{ :wikipaom2022:rollbar_v0010p.wxmx |v0010 - finale}}.
===== Quarter ladder frame chassis =====

{{ :wikipaom2022:quarter_ladder_frame_paom2022a.wxmx |}}

{{ :wikipaom2022:quarter_ladder_frame_paom2022b.wxmx |}}

{{ :wikipaom2022:quarter_ladder_frame_paom2022c.wxmx |}}

{{ :wikipaom2022:quarter_ladder_frame_paom2022d.wxmx |}}

{{ :wikipaom2022:channel_section_ffcd2020.wxmx | proprietà sezione di riferimento}}

{{ :wikipaom2022:quarter_ladder_frame_paom2022z.wxmx |}}

===== struttura simil Halo =====
{{ :wikipaom2022:halo_paom2022a.wxmx |}}

{{ :wikipaom2022:halo_paom2022b.wxmx |}}

{{ :wikipaom2022:halo_paom2022c.wxmx |}}

{{ :wikipaom2022:halo_schema_momenti.jpg?linkonly |schemi statici per la determinazione dei momenti flettenti e torcenti}}

{{ :wikipaom2022:halo_v004.mud |}} {{ :wikipaom2022:halo_v007.mud |}} {{ :wikipaom2022:halo_v008.mud |}}
===== Other stuff =====

{{ :wikipaom2022:caveat_castigliano.wxmx |}}

**Principal orientations for beam flexure**. This {{:wikiffcd2022:l-section-largerots-hie_rotunitm.gif?linkonly|gif animation}} presents the axial stress component map as a function of the bending moment vector orientation, as evidenced by the rotating needle. 
It clearly appears that, for a generic (vs. e.g. circular) cross section, the neutral axis may significantly deviate from the moment vector orientation; those two directions become parallel only in correspondence of the principal directions for bending (located at [18.4°-18.5°]+N·90° for the cross section under scrutiny). The bending moment rotates of 0.1° each increment.

{{ :wikipaom2022:free_anticlastic_vs_cylindrical_bending.wxmx |foglio Maxima}} per calcolo risultanti momento e curvature in un esempio di piastra inflessa (provino a flessione a quattro punti).

{{ :wikipaom2022:modi_piastra_mindlin_v002b.pdf |}}

[[https://cdm.ing.unimo.it/dokuwiki/wikifemfuchde2020/buckling|Instabilità]],
{{ :wikipaom2022:euler_beam_buckling_2022_noplv.wxmx |}},
{{ :wikipaom2022:400mm_supported_bar_v2022a.mfd |}}
{{ :wikipaom2022:400mm_supported_bar_v2022b.mfd |…b.mfd}}
{{ :wikipaom2022:400mm_supported_bar_v2022c.mfd |…c.mfd}}


===== Videos =====

[[wikipaom2022:videos|primavera 2022]]

[[wikipaom2021:start|primavera 2021]]


===== Turni d'esame =====

[[https://cdm.ing.unimo.it/dokuwiki/restricted/turni_esame_pt_pasm_paom]]