Summary
Zusammenfassung Einführung in die Kinetik und Kinematik der Technischen Mechanik 3
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- Institution
Erklärung der der Kinetik und Kinematik aus dem dritten Semester des Maschinenbaustudiums.
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EinführungKinetik UrsachederBewegung KräfteMomente
D'AlembertlauteinstatischesSystemzurückzuführen
Kinematik BeschreibtunabhängigvonderUrsachedieBewegungszusammenhänge verschiedener
Systeme
D'Alembert
Beispielaufgabe Zugbremst gegia.mg
g ges µ Reibung
u
gx.in
m a a Bremsbeschleunigung
to Gleitreibung
Freischnitt
mag Ft D'Alembertsche Trägheitskraft
x v Ft ma
Ft a
µ R
EFxxt o Tt R m.ee R 111 Unbekannt R
EFFIO mgtN 121 Unbekannt N
3 R ma Coulomb IRT µ ü
v mag
N IRI m a a
INI mg 8
, Beispielaufgabe FallendeMasse ohne Luftwiderstand
I
g m geg m.li 00 gges aIFallzeitt
b Auttrettgeschwindigkeit
x.x
r l ausderRuhe t.tt
Zustand
Freischnitt
I IFten EF m
g Ft
0 mg m im
Y x.x
v o gü
Bewegungsgleichung
g
ich
ii da g di g.tt Sdi g Idt
in o O tO
ICH g.tk Geschwindigkeitszeitsgeset
x dx g t
dt
t
Sdxigft'dt
O tO
HI g t 121 WegZeit Gesetz
BerechnungderFallzeitmitGleichung121
xltkl g.int Fallzeit
7tEj2glI3I
3 inkl iltl g tig VY VZ.gl Auttrettgeschwindigkeit
ZweitesnewtonschesGesetz
v
WirnehmendieBeobachterpositionbei lexsenkunda alsMitfahrerein
EFEm.ci
BetrachtungnachLagrange EE ö
Alternativlösung AußenstehenderBeobachter EulerBetrachtung
BewegungsgleichungnachLagrange
Eg di
dt
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