1. Ground vibration test planning and pre-test analysis for the X-33 vehicle
2. mode t RSS Value Freq. (Hz) 1 1 24.2969 0.1808** 2 2 31.2164 0.3646** 3 3 3.1378 0.5696* 4 4 82.8068 1.3741** 5 5 8.3979 1.4554** 6 6 24.8577 1.4914** 7 7 13.0525 2.1408** 8 8 18.9139 2.2473** 9 9 42.6869 2.3667** 10 11 2.0993 4.1329* 11 13 3.4374 5.5324* 12 15 3.5313 6.3970** 13 16 4.9361 6.4581** 14 18 16.6601 7.7719** 15 19 8.1653 7.8355** 16 20 2.2717 8.3583* 17 22 2.5715 8.5490* 18 23 5.0881 8.8501** 19 24 7.1279 9.2583** 20 30 3.1517 10.3370* 21 32 3.1954 10.5886* 22 35 4.0228 11.0533** 23 38 1.9874 11.2734 24 39 2.2565 11.2803* 25 40 3.6870 11.3322** 26 42 10.8559 11.6068** 27 43 1.9004 11.6629 28 45 5.5866 12.2860** 29 72 1.6075 14.3467 30 82 5.6439 15.4933**
3. Table 4: Example ofRSS Search Results (continued) 31 84 2.1897 15.7687* 32 92 2.1649 16. 7441* {Target Mode Visually ID: P-92) 33 94 2.5973 16.9149* {Target Mode Visually ID: P-94) 34 95 1. 6982 16.9508 35 96 2.7638 17.0105* 36 97 2.9189 17. 202 6* {Target Mode Visually ID: P-97) 37 99 3.4288 17. 3587* 38 101 3.9555 17. 7632** 39 102 2.3893 17.8474* {Target Mode Visually ID: P-102) 40 107 2.1987 18.3122* {Target Mode Visually ID: P-107) 41 108 2.0461 18.3412* 42 116 6.5650 18.8164** {Target Mode Visually ID: S-116) 43 117 3.1380 18. 9689* 44 152 1. 5735 20.9458 45 154 1.5635 21.0687 46 157 1.5186 21.2594 47 160 1.9423 21. 3991 48 164 1.6495 21. 6620 49 212 1. 6487 24.0730 50 261 2.5674 26.1254* 51 274 1.5853 26.9555 {Target Mode Visually ID: P-274)