An aircraft windshield is rated according to the following material characteristics. The weighting factors are shown...
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An aircraft windshield is rated according to the following material characteristics. The weighting factors are shown in parentheses. The candidate materials are: Resistance to shattering (10) Fabricability (2) Weight (8) Scratch resistance (9) Thermal expansion (5) Property Resistance to shattering Fabricability A plate glass B PMMA Weight Scratch resistance Thermal expansion C D The properties are evaluated by a panel of technical experts, and they are expressed as percentages of maximum achievable values. tempered glass a special polymer laminate A 0 50 45 100 100 Candidate material B C 100 100 100 S 10 90 10 45 100 100 D 89889 90 30 90 90 30 Use the weighted property index to select the best material. (4) Is the best material the same if only "thermal expansion is not considered? Recalculate (2) Is the best material the same if only "scratch resistance is not considered? Recalculate (2) What is the best material if the importance of "fabricability is tripled? Recalculate (2) An aircraft windshield is rated according to the following material characteristics. The weighting factors are shown in parentheses. The candidate materials are: Resistance to shattering (10) Fabricability (2) Weight (8) Scratch resistance (9) Thermal expansion (5) Property Resistance to shattering Fabricability A plate glass B PMMA Weight Scratch resistance Thermal expansion C D The properties are evaluated by a panel of technical experts, and they are expressed as percentages of maximum achievable values. tempered glass a special polymer laminate A 0 50 45 100 100 Candidate material B C 100 100 100 S 10 90 10 45 100 100 D 89889 90 30 90 90 30 Use the weighted property index to select the best material. (4) Is the best material the same if only "thermal expansion is not considered? Recalculate (2) Is the best material the same if only "scratch resistance is not considered? Recalculate (2) What is the best material if the importance of "fabricability is tripled? Recalculate (2)
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To determine the best material based on the weighted property index we calculate the weighted sum for each material by multiplying each property value by its corresponding weighting factor and then su... View the full answer
Related Book For
Management Accounting Information for Decision-Making and Strategy Execution
ISBN: 978-0137024971
6th Edition
Authors: Anthony A. Atkinson, Robert S. Kaplan, Ella Mae Matsumura, S. Mark Young
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