UNIWERSYTET WARMIŃSKO - MAZURSKI
Wydział Nauk Technicznych
Semestr zimowy 2003 / 2004
Kierunek: Mechanika i Budowa Maszyn
Praca kontrolna
z
Teorii Mechanizmów i Maszyn
Schemat kinematyczny II wariant 1
Czarnecki Zbigniew
Rok III, semestr IV
Praca kontrolna z Teorii Mechanizmów i Maszyn
Schemat kinematyczny II wariant 1
r = 100 mm
ω = 2 π rad s -1
jr = |
r |
= |
0,1 m |
= 0,005 m⋅mm -1 |
|
(r) |
|
20 mm |
|
jV = |
V |
= |
0,63 m⋅s -1 |
= 0,02 m ⋅ mm -1 ⋅ s -1 |
|
(V) |
|
20 mm |
|
ja = |
jV 2 |
= |
0,0004 m 2 ⋅ mm -2 ⋅ s -2 |
= 0,08 m 2 ⋅ mm -2 ⋅ s -2 |
|
jr |
|
0,005 m⋅mm -1 |
|
Prędkości
VA1 = ω ⋅ r = 2 π rad s -1 ⋅ 0,1 m = 0,63 m ⋅ s -1 ( = constans )
VA2 = VA1 + VA2A1
VB = VA2 |
O2B |
Z twierdzenia Talesa |
|
VB |
= |
VA2 |
|
O2 A2 |
|
|
O2B |
|
O2A2 |
VC = VB + VCB
Przyspieszenia
aA1 = |
VA12 |
= 1,323 m ⋅ s -2 |
( = constans ) |
|
O1A |
|
|
aA1 = aA1n
aA2 = aA2n + aA2τ
aA2 = aA1 + aA2A1 = aA1 + aA2A1c + aA2A1w
aB = aA2 |
BO2 |
Z twierdzenia Talesa |
|
aB |
= |
aA2 |
|
A2O2 |
|
|
O2B |
|
O2A2 |
aC = aB + aCB
aCB = aCBn + aCBτ
aC = aB + aCBn + aCBτ
aCBn = aA2 |
VCB2 |
|
CB |