Manufacturing Systems Modeling and Analysis

Second Edition
©2011

Known Typos

Chapter 3.  Single Workstation Factory Models

Page 70, Equation (3.1).   The index n varies from 1 to nnmax-1 instead of to nnmax.

Page 86, Third Equation from bottom   The summation should stop at 3 instead of 4.

Chapter 4.  Processing Time Variability

Page 112, line 4 from bottom.   The fraction 1/6 should be 1/3; thus the line should be
... cycle time in the queue by 1/3 ...

Page 114, lines 5 and 6 of Example 4.2.   The values given in the example are for the squared coefficient of variation; thus, replace Ca and Cs with Ca2 and Cs2.

Page 119, line 11 from bottom   The values given for (p(14,s,p), p(15,s,p), p(15,p,p) ) are actually the values for (p(15,s,p), p(16,s,p), p(16,p,p) ).

Page 120, line 5.   The value of WIP for n=60 is 7.766 instead of 7.658.

Page 120, final equation on the page.   The machine utilization factor is 0.75 instead of 0.8909.

Chapter 6.  Multiple Factory Models

Page 166, Table 6.3   The final few values in the table are slightly off. The four CT(k) values should be 0.400 hr, 0.459 hr, 0.576 hr, and 0.239 hr. The four WIP(k) values should be 4.772, 5.023, 6.389, and 2.986.

Page 172.   It might be noted that the reason the value of C2[Ts(1)] is calculated as 1.522 but the table shows its value as 1.521 is due to a difference in the number of digits to the right of the decimal used in the two calculations.

Page 173, Equation (6.11)   The index for the cell on the left-hand side of the equation should be k instead of j, namely it should read Ca2(0,k) instead of Ca2(0,j).

Page 173, Example 6.7.   The (3,1) element of the P matrix is wrong; it should be 0.0514 instead of 0.0541.

Page 188, Last line of page.   The last part of the line should read “ for product i = 1 and 2.” (There are only two products.)

Page 196, Problem 6.14.   The reference to Eq. (6.9) should be to Eq. (6.12).

Chapter 7.  Models of Various Forms of Batching

Page 204, line 8.   Insert the word “not” as the second to last word in that line; thus, the ending part of the line would be “In this case there would not be ”

Page 217, bottom of page   At the end of the sentence at the bottom of the page insert the following “plus the mean service time.”

Page 219, first equation on page   The expression 0.25/(1-0.25) should be 0.75/(1-0.75) since utilization equals 0.75.

Chapter 8.  WIP Limiting Control Strategies

Page 244, line 7.   The word “nonsingular” should be changed to “singular”.

Page 250, equations dealing with probabilities   There should be no units associated with the probabilities; thus, the “/hr” units associated with the probabilities should be deleted.

Page 253, line 6.   The denominator should not be squared and the random variable T should have a subscript, so the expression should read E[Ts2] / (2E[Ts]).

Page 260, Equation (8.9).   The subscript in the final term of the denominator in the expression at the end of the first line should be j not k. In other words, the final term in the denominator on the first line of Eq. (8.9) should be CTji .

Chapter 9.  Serial Limited Buffer Models

Page 287, The G-1 matrix   The second row of G-1 should be 0, -0.3333, -0.0375.

Page 301, line 20.   The value of pFa,3 is 0.0848 instead of 0.0849.

Page 302, lines 3,4.   The value of pFa,3 is 0.0848 instead of 0.0851 from line 3, and thus line 4 should indicate an 8.48% chance instead of an 8.51% chance.

Page 301, line 13.   The phrase “obtained from Property 9.3” should read “obtained from Eq. (9.2)”.