Research Article
A Fuzzy-Based Analytic Hierarchy Process for Mechanical Noise Source Identification of a Diesel Engine
Table 3
The fuzzy consistency matrices for the frequency level.
| | | E1 | E2 | E3 | E4 | E5 | E6 | Weight |
| D1 0–500 Hz | E1 | 0.500 | 0.630 | 0.638 | 0.466 | 0.647 | 0.659 | 0.229 | E2 | 0.370 | 0.500 | 0.508 | 0.336 | 0.517 | 0.529 | 0.134 | E3 | 0.362 | 0.492 | 0.500 | 0.328 | 0.508 | 0.521 | 0.129 | E4 | 0.534 | 0.664 | 0.672 | 0.500 | 0.681 | 0.693 | 0.265 | E5 | 0.363 | 0.483 | 0.492 | 0.319 | 0.500 | 0.512 | 0.125 | E6 | 0.341 | 0.471 | 0.479 | 0.307 | 0.488 | 0.500 | 0.118 |
| D2 500–800 Hz | E1 | 0.500 | 0.728 | 0.695 | 0.662 | 0.676 | 0.587 | 0.286 | E2 | 0.272 | 0.500 | 0.467 | 0.433 | 0.447 | 0.359 | 0.110 | E3 | 0.305 | 0.533 | 0.500 | 0.467 | 0.481 | 0.393 | 0.126 | E4 | 0.338 | 0.567 | 0.533 | 0.500 | 0.514 | 0.426 | 0.145 | E5 | 0.324 | 0.553 | 0.519 | 0.486 | 0.500 | 0.412 | 0.137 | E6 | 0.413 | 0.641 | 0.607 | 0.574 | 0.588 | 0.500 | 0.197 |
| D3 800–1200 Hz | E1 | 0.500 | 0.804 | 0.631 | 0.669 | 0.783 | 0.738 | 0.286 | E2 | 0.196 | 0.500 | 0.327 | 0.365 | 0.479 | 0.433 | 0.187 | E3 | 0.369 | 0.673 | 0.500 | 0.538 | 0.653 | 0.607 | 0.111 | E4 | 0.331 | 0.635 | 0.462 | 0.500 | 0.614 | 0.568 | 0.163 | E5 | 0.217 | 0.521 | 0.348 | 0.386 | 0.500 | 0.454 | 0.117 | E6 | 0.263 | 0.567 | 0.393 | 0.432 | 0.546 | 0.500 | 0.136 |
| D4 1200–1800 Hz | E1 | 0.500 | 0.741 | 0.840 | 0.628 | 0.792 | 0.698 | 0.360 | E2 | 0.259 | 0.500 | 0.599 | 0.387 | 0.552 | 0.458 | 0.122 | E3 | 0.160 | 0.401 | 0.500 | 0.288 | 0.452 | 0.358 | 0.078 | E4 | 0.372 | 0.613 | 0.712 | 0.500 | 0.664 | 0.570 | 0.197 | E5 | 0.208 | 0.448 | 0.548 | 0.336 | 0.500 | 0.406 | 0.097 | E6 | 0.302 | 0.542 | 0.642 | 0.430 | 0.594 | 0.500 | 0.146 |
| D5 1800–2500 Hz | E1 | 0.500 | 0.596 | 0.754 | 0.483 | 0.763 | 0.629 | 0.252 | E2 | 0.404 | 0.500 | 0.658 | 0.388 | 0.667 | 0.533 | 0.166 | E3 | 0.246 | 0.342 | 0.500 | 0.229 | 0.508 | 0.375 | 0.084 | E4 | 0.517 | 0.613 | 0.771 | 0.500 | 0.779 | 0.646 | 0.272 | E5 | 0.238 | 0.333 | 0.492 | 0.221 | 0.500 | 0.367 | 0.082 | E6 | 0.371 | 0.467 | 0.625 | 0.354 | 0.633 | 0.500 | 0.144 |
| D6 2500–4000 Hz | E1 | 0.500 | 0.376 | 0.627 | 0.317 | 0.482 | 0.613 | 0.138 | E2 | 0.624 | 0.500 | 0.751 | 0.441 | 0.607 | 0.738 | 0.236 | E3 | 0.373 | 0.249 | 0.500 | 0.190 | 0.356 | 0.487 | 0.080 | E4 | 0.683 | 0.559 | 0.810 | 0.500 | 0.666 | 0.797 | 0.313 | E5 | 0.518 | 0.393 | 0.644 | 0.334 | 0.500 | 0.631 | 0.149 | E6 | 0.387 | 0.262 | 0.513 | 0.203 | 0.369 | 0.500 | 0.084 |
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