Page 336 - Marks Calculation for Machine Design

P1: Shashi
January 4, 2005
15:4
Brown.cls
Brown˙C07
STRENGTH OF MACHINES
318
300
eff
(s )
m
Scale: 15 MPa × 15 MPa
225 Calculated stresses
202 S e
161
150
s eff Goodman line
m
75 s eff
a
S ut
0 (s )
eff
0 75 150 225 300 375 450 525 600 675 m
120
FIGURE 7.33 Goodman diagram for Example 1 (SI/metric).
This concludes Part I, Strength of Machines. Part II, Application to Machines, covers the
most common types of machine elements, divided into three chapters. These three chapters
represent the main themes of machine design:
1. Assembly
2. Energy
3. Motion
The principles and analysis methods, both mathematical and graphical, presented in the
seven chapters of Part I will be used to determine the critical design parameters for these
machine elements in Part II. These parameters will then be used to establish whether the
design is safe under static or dynamic operating conditions.