Belts, Chains, Wire Rope
Allow power transmission over a distance
Simplify design
Reduce cost
Help in isolating _
_
and should be replaced at the first sign of
deterioration
Chapter 17
Belts, Chains, and
Wire Rope
Shigley: Budynas & Nisbett
Belt Namin
OUTLINE - Bearings
Description
Bearing Life
Selection
Mounting
D t
Determining R
i i Reaction F
ti Forces
Chapter 11
Ch
Rolling-Contact
Rolling Contact
Bearings
Shigley, Mischke & Budynas
Material in slides from Dr Beth Todd
Dr.
AFBMA
Four Essential Pa
Solutions
ME 450
Homework #6
1. For a four-bar linkage with r1 = 7 in, r2 = 2 in, r3 = 4 in, r4 = 4 in, the stationary link (Link
1) is mounted at an angle of 15 with the horizontal (i.e., 1 = 15). Find the positions of
Links 3 and 4 if Link 2 is at the p
Problem #14-15
Solution Process
A steel spur pinion and gear have a diametral
pitch of 12 teeth/inch, milled teeth, 17 and 30
teeth respectively, a 20 pressure angle and a
pinion speed of 525 RPM.
The tooth properties are
1.
Sut 76 kpsi, S y 42 kpsi, Brin
ME 450
Solutions
Practice #4
1. A system consists of two rotating disks with I1 = 200 lbm-in2 and I2 = 150 lbm-in2.
Initially, Disk 1 is rotating at 250 rpm and Disk 2 is rotating at 2,000 rpm. A clutch
between the two disks is engaged such that the two d
OUTLINE - Bearings
Description
Bearing Life
Selection
Mounting
Determining Reaction Forces
Chapter 11
Rolling-Contact
Bearings
Shigley, Mischke & Budynas
Material in slides from Dr. Beth Todd
ABMA
Four Essential Parts of a Bearing
(ABMA) has developed
ME 450
Solutions
Practice #3
1. A flat belt drive system is being considered for use in transmitting 0.5 hp from a motor
shaft operating at a speed of 3,800 rpm. The pulley on the motor has a diameter of 1
inch. The driven pulley, which is assumed to oper
Outline
Gear
Theory
Fundamental Law of Gearing
I
Involute
l t profile
fil
Nomenclature
Gear
Trains
Loading
Stresses
Part of slides from
www.me.udel.edu/meeg304/03/gears-304.ppt
Helical Gears
Used
with either
_ or nonparallel shafts
Gear teeth are i
Codes and Standards
Codes are _
Standards are _
p by
y experts
p
in the field
developed
Chapters 14 and
Ch
d1
15
Gear Bending and
Surface Stresses
Public
Expectation
Competition in the Marketplace
Liability
Shigley & Mischke
AGMA
_ _ _
Association has
ME 450
Solutions
Practice #2
1. A designer is selecting a Timken roller bearing for a particular application. If the bearing
is to operate for 24 hours/day for 9 months at a speed of 650 rpm, what is the catalog load
rating that is necessary for a reliabi
ME 450
Solutions
Homework #5
1. Determine the mobility (#DOF) for the systems shown in (show your work)
a. Figure 3.11a (4th or 3rd Edition).
b. The following mechanism.
2. Problem 10.4 in 4th Edition (same as 11.4 in 3rd Edition). Put O2 on the horizonta
ME 450
1. Problem 4.7 (4th or 3rd Edition).
Solutions
Homework #7
2. In the following four bar linkage, a torque T12 is applied to link 2 to generate the desired
motion (velocity and acceleration of all moving links).
(1) How many equations can be obtaine
ME 450
Solutions
Homework #6
1. For a four bar linkage with r1 = 6 in, r2 = 3 in, r3 = 4 in, r4 = 4 in and initially in a noncrossed configuration (open), find all the interior angles when 2 = 25 and when 2 =
170.
2. Problem 3.10 (4th or 3rd Edition) usin
ME 450
Solutions
Homework #5
1. Determine the mobility (#DOF) for the systems shown in (show your work)
a. Figure 3.11a (4th or 3rd Edition).
b. The following mechanism.
2. The rocker of a crank-rocker linkage is to have a length of 600 mm and swing throu
ME 450 DYNAMIC MACHINE COMPONENTS
Summer 2017
Dr. Todd
Homework 6
Due: July 21, 2017
1. (Problem 11-4, pg. 366/10-4, pg. 464/9-4, pg. 504) The rocker of a crank-rocker linkage is to
have a length of 500 mm and swing through a total angle of 45-degrees wit