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Analiza
structurală a
mecanismelor
formula structurală
𝑀 = 6 − 𝑓 · 𝑛 −
𝑖=𝑓+1
5
𝑖 − 𝑓 · 𝐶𝑖
formula structurală în plan
𝑀 = 6 − 3 · 𝑛 −
𝑖=3+1
5
𝑖 − 3 · 𝐶𝑖
formula structurală în plan
𝑀 = 3 · 𝑛 −
𝑖=4
5
𝑖 − 3 · 𝐶𝑖
formula structurală în plan
𝑀 = 3 · 𝑛 − 𝐶4 − 2 · 𝐶5
Etapele rezolvărilor exercițiilor
a)Marcarea elementelor mobile
b)Marcarea cuplelor cinematice
c)Specificarea clasei fiecărei cuple cinematice
d)Determinarea gradului de mobilitate
Etapele rezolvărilor exercițiilor
n = ...
C4 = ... (.................)
C5 = ... (.................)
M =
Enunț
Pentru fiecare dintre structurile
mecanice care vor urma să se marcheze
elementele mobile, să se marcheze
cuplele cinematice, să se specifice clasa
fiecărei cuple cinematice și să se
determine gradul de mobilitate.
Exercițiul nr. 1
(mecanismul bielă – manivelă centric)
Exercițiul nr. 2
(mecanismul patrulater)
Exercițiul nr. 3
(mecanismul pentalater)
Exercițiul nr. 4
(mecanismul cu element pasiv)
Exercițiul nr. 4
(mecanismul cu element pasiv)
Exercițiul nr. 5
(mecanismul concasorului cu fălci)
Exercițiul nr. 6
(mecanismul mașinii de rabotat)
Exercițiul nr. 7
(mecanismul transportorului oscilant)
Exercițiul nr. 8
(mecanismul de avans al căruciorului strungului)
Temă
(mecanismul presei de ștanțat fin)

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01 - Analiza structurala a mecanismelor.pptx