Saturday, June 25, 2011
The first chapter is a good answer to the question What is Industrial Engineering?
Thursday, April 7, 2011
OP-03 Industrial Engineering Concepts
Date 13.9.2010 Max. Marks: 60
Answer any TEN questions
All questions carry equal marks
1. Efficiency is an important performance dimension of management. Industrial engineering focuses on this dimension. Explain how IE definitions emphasize efficiency of systems.
Appropriate IE definitions were not written
2. Explain the concept of Human Effort Engineering.
3. Explain the contribution of Taylor and Gilbreth to development of industrial engineering.
Taylor: Time Study, Scientific Management, Wage Incentive systems
Gilbreth: Motion study, Therbligs, Fatigue studies, Chronocycle graph
But not PMTS, OR, Engineering economics
4. Explain the principles of motion economy related to the use of human body.
5. Explain the measurement of performance or speed rating in time study.
Definition, Accepted standards for speed
6. What is the role of ergonomics in IE’s work? State some laws or principles of ergonomics and explain how do you use them in human effort design.
What is ergonomics? Needs explation.
7. What is a PMTS? Explain MTM system of PMTS
8. Explain the concept of methods efficiency engineering. What is the role questioning and discussion in methods improvement?
Role of questioning and discussion not properly explained.
9. What are the 13 value analysis techniques? Explain any three of them briefly.
10. What is the IE toolkit? Identify the subjects that provide the foundation for these techniques.
Foundation subjects not identified
11. What is definition of Industrial Engineering according to IIE? What is the importance of mathematical methods in industrial engineering practice? Explain with examples.
Mathematical optimization, Proper Statistical decision making, OR Models
12. Engineering economics demands profit sense from engineers. Explain. What can be the special role of IEs in the practice of this subject in companies?
Engneering economic analysis is to be done by the concerned engineering department. IE depart can do engineering economic appraisal.
13. Gives the steps in systems engineering process. Where is the role for IE in system design process? How does he contribute?
Human effort engineering, system efficiency engineering and managerial responsibilites
14. IEs have to participate in installation process of the methods and improvements suggested by them. What are the guidelines for IEs for successful installation of improved methods?
Monday, February 28, 2011
Saturday, February 5, 2011
Ergonomics - Knol Book
Value Analysis and Engineering - Knol Book
Some more subjects available on
Tuesday, October 26, 2010
According to him TQM is the brain, TPM is the muscle and TIE is the humanware.
I am trying to find out the details of the concept. So far I could only access three or four slides on the concept. Covered in a post on Knol.
Thursday, August 5, 2010
William Wrennall wrote chapter 8.2 Facilities Layout and Design in Maynard's IE Handbook, 5th Edition.
Space planning identifiers (SPIs). An SPI represents a function, department, or feature that requires space, impacts placement, or has flow or non-flow relationships with other SPIs.
SPIs may be:
• product-focused (e.g., a lamp assembly cell);
• functional departments (e.g., a powder paint unit);
• storage areas (e.g., tool crib); or
• building features (e.g., loading dock).
Within the SPI definitions, the items, areas, and functions that are included and excluded should be noted. This is done to ensure that the fundamental elements are communicated.
Affinities and relationships. An affinity is the degree of closeness between two SPIs. The affinity is based on material flow and non-flow considerations or a combination of the two. Affinity values and their generally accepted definitions include:
• A is absolute/adjoining
• E is "especial"/close (touching, if possible)
• I is important/nearby
• O is ordinary/conveniently near
• U is unimportant
• X indicates that proximity is not desirable
• XX indicates that separation is important
These are demonstrated best on an affinity chart (which is similar to a mileage chart), with the SPIs listed along the side and the affinities posted in the look-up intersections.
This is a good time to develop and agree on tiebreakers, which are rules to apply when procedures do not provide a definite design choice. In many cases, the tiebreakers may create a placement protocol that incorporates elements from operations and manufacturing strategy.
The affinity chart is converted into a graphical form called a configuration diagram that organizes the SPIs into an arrangement based on affinities . The arrangement is accomplished by using several SPI placement iterations. The A and E affinities are placed first, with subsequent iterations adding the I, O, X, and XX affinities.
Lines indicate the affinity between SPI pairs. Line designations include:
• A = 4 red lines
• E = 3 orange lines
• I = 2 green lines
• O = 1 blue line
• X and XX = black, spring-like lines
Space requirements for each SPI. The space required for an SPI should reflect growth, either positive or negative, for each SPI over the planning horizon. The planning horizon should be between five and 10 years. This interval is best because any less may not allow for necessary growth and any more is probably a guess.
The SPI with the incorporation of space is the space-planning unit (SPU).
Layout primitive. Space-planning units are substituted for their corresponding SPIs in the configuration diagram. The result of the substitution is a layout primitive . The layout primitive is important because it is an unconstrained macro (block) layout. The next step will implement any constraints, including the building or its footprint.
Macro layouts. Apply constraints to the layout primitive. The layout primitive is constrained into a footprint, which sometimes causes several solutions to present themselves. These multiple solutions are the primary macro layout options.
A number of considerations have to be taken into account during this step, including the SPI space and shape. The variability of changes to the shape or geometry of space indicates the dynamic nature of usable blocks of space and should be considered block dynamics. Block dynamics describe how the block assumes a characteristic geometry based on the population and orientation of the population. In addition, columns and column spacing have an impact on block dynamics.
Populating the layout. Populate the selected layout option is placement of individual facilities or equipment in the block of space specified for a space planning identifier. The term "populate" is more appropriate than "detail." Although detail is being incorporated, the population of the block validates the space planning unit with its associated block space and geometry.
Tuesday, July 6, 2010
Birth Day of Frank Gilbreth 7th July is celebrated as the Knol Day of Industrial Engineering for the year 2010. Many articles on Industrial Engineering are being written for the occasion.
Students of NITIE are posting number of articles which are summaries of various articles published in Industrial Engineer magazine
Index of articles written by IE students of NITIE, Mumbai, India on the occasion of Knol Day of Industrial Engineering
Industrial Engineer Magazine Article Summaries by 2010 IE Students NITIE, Mumbai, India
All visitors are requested to write comments on various issues related to industrial engineering in comments blocks.