Proposal of examination topics of Design and Machine Parts and Mechanisms

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Oct 31, 2013 (3 years and 5 months ago)

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Proposal of examination
topics

of Design and Machine Parts

and Mechanisms


Comprehensive
State Examination of
B
achelor
´

s

degree program



Theoretical
Basis

of Mechanical
Engineering


B
y doc. Dynybyl and
staff

of 12113



1.

Mechanism

with
interacting internal

and external
thread
s



kinematic, dynamic and power
interaction,

design and strength check of screw, screw materials,
thread
geometry, tolerances,
thread technology.

Drawing and dimensioning of threads, designing of
nut and screw
se
t
ting
.


2.

Connecting bol
ts


geometry, drawing according to standards,
thread
tolerances, materials,


p
roduction, force
interaction

at assembly and disassembly, wrench torque, design of


screw, static strength check, additional bending load of screw.


3.

Dynamic load of

prestressed screws


diagram of preloaded connection at pulsatin
g
, repeat
ing

and
sym
m
etrical
ly

alternating external force
,
size calculations

at cyclic load. Materials and design
improvements of screws to
improve

load capacity.



4.

Force connections of
hubs and shafts


principle of force transfer actions
in case of

pressed and clamped
joints, design and strength check of join
ed

parts. Tolerance
field

of hub and shaft.
Drawing of design
solutions.


5.

Shape

connections of hub and shaft
using

pins, tenons,

k
eys,

splin
es

-

drawing, design and strength
c
heck,
shapes, tolerances,
etc.


6.

Wel
ded connections
us
ing

butt welds


types

of welds, strength check of welds at static

loads, technology of welding. Description of welds
o
n technical drawings.



7.

Welded co
nnections us
ing

fillet welds


types

of welds, strength check of welds at static loads,
technology of welding. Description of welds
o
n technical drawings.


8.

Mechanical transmissions


types
,
statics,
kinematics,
and

mechanical efficiencies.


9.

Belt drives


d
esign, strength check of belts, force analysis inside V
-
belt groove, operating prestress of
belt. Drawing and
dimensioning of pulle
y
s,
fastening

of pulle
y
s o
n

shafts.


10.

Chain drives


design of parts, design and strength check of chain, force analysis,
irre
gularities
of
running
, operating conditions. Drawing and dimensioning of sprockets and chains.


11.

Gear drives


theory of involute gear
s
, basic law of gear drive, gear production, standardized cutting
toothed rack. Drawing and dinensioning of gears.


12.

Spu
r gear drives


geometry of gear
s
,
tooth
undercut, correction

to eliminate
tooth undercut.


13.

Spur gear drives


force and kinematic

interaction
, fundamentals of strength calculation,

gear
m
aterials and their
manufacture.


14.


Helical gear drives


geometry of

gear
s
, force
interaction
,
investigation of shaft and support


loads.


15.


Bevel, screw and worm gear drives


geometry of gears and worm, materials of parts. Force

interaction
.
Drawing of gears and w
o
rms, se
t
ting of them inside gearboxes.


16.


Axes and

shafts


design,

materials, production, use standard elemen
t
s (
undercuts
, centre


marks)
, deformation and strength checks at static and dynamic loads,
geometrical tolerances


of

shape and position. Drawing and dimensioning.




17.


Sliding bearings


fundamentals of
friction
, lubrication and kinds of lubricants. Design,


materials, tolerances, calculation of loading capacity.

Drawing of bearings, se
t
ting of shafts


with bearings.


18.


Rolling bearings


standardization,
overview
,

type sof,

loading ca
pacity

and

durability
.


Drawing of bearings, se
t
ting of shafts with bearings.


19.


Shaft couplings and clutches


overview
,
types of
, application, design and design



calculations, materials, production. Drawing of pin flexible

couplings, couplings
with


elastic elements,
toothed

couplings. Drawing of couplings and
their positron in assembly.



20.

Crank mechanisms


design of parts, kinematics and dynamics of crank mechanism,


loading of mechanism by external, internal a
nd

inertial forces.

Drawing of connecting rods


and pistons.




Literature

in English
:


[1] JANČÍK, L.:
Machine Elements and Mechanisms I.

Prague: CTU in Praque, Faculty


of Mechanical Engineering, 2008. (Study texts).

[2] JANČÍK, L.:
Machine Elements and Mechanisms II.

Prague:
CTU in Praque, Faculty


of Mechanical Engineering, 2008. (Study texts).

[3] JANČÍK, L.:
Machine Elements and Mechanisms I
-

Tasks.

Prague: CTU in Praque,



Faculty of Mechanical Engineering, 2008.


(Study texts).

[4] JANČÍK, L.:
Project


3
rd
year of study.

Prague: CTU in Praque, Faculty



of Mechanical Engineering, 2008. (Study texts).

[5]
SHIGLEY
, J., E.,
MISCHKE
, Ch., R.:
Mechanical Engineering Design
. New York:


McGraw
-
Hill Book Company, 1989.

[6]
PARMLEY, R., O.:
Mechanical Components
. New York: MC GRAW
-
Hill, 2000.



Literatur
e in Czech
:



[1]

POSPÍCHAL, J.
Technické kreslení
. ČVUT Praha. 88 str.

[2]

SLANEC, K.
Konstruování
-

Geometrická přesnost výrobků, díl 1 až 3.
ČVUT Praha.

[3]

SLANEC, K. Strojírenské k
onstruování
-

Geometrická přesnost výrobků
-
příklady, díl 1 až 3.
ČVUT
Praha 2009.

[4]

ŠVEC, V.:
Části a mechanismy strojů. Spoje a čá
sti spojovací
. Praha: Vydavatelství

ČVUT, 2002, 2008

[5]

ŠVEC, V.:
Části a mechanismy strojů. Mechanické převody
. Praha: Vydavatelství

ČVUT, 2003.

[6]

JANČÍK, L. ; ZÝMA, J.:
Části a mechanismy strojů
. Praha: Vydavatelství ČVUT,

2004
.

[7]

ŠVEC, V.:
Části a mechan
ismy strojů. Příklady
. Praha: Vydavatelství ČVUT, 2003.

[8]

KUGL, O. a kol
.:
Projekt
-

III. ročník
. Praha: Vydavatelství ČVUT, 2005.