Tham khảo tài liệu 'handbook of shaft alignment episode 1 part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 60 Shaft Alignment Handbook Third Edition 02-1 Test run 2 M2W s .01 - cn x c 0 Ọ I 0 I I I I I I I I 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Test run 4 M36W Test run 5 M65H Test run 6 M55L .02 Frequency orders of running speed .01 cn x c Test run 7 M6W 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Frequency orders of running speed FIGURE Inboard MOTOR vertical direction. The 2x 4x and 6x peaks prevailed in the pump bearings. Higher multiples of running speed occurred on the pump from 40 to 100 kcpm particularly during the vertical misalignment runs. The twice fourth and eighth running speed frequencies are a result of the S-shaped grid as it traverses from its maximum tilted and pivoted positions twice each revolution on both the coupling hubs. The third and sixth running speed multiples occur as the metal grid in the coupling changes its position during each revolution of the shafts. The Detecting Misalignment on Rotating Machinery 61 02-I Inches per second Inches per second Inches per second Inches per second Inches per second Inches per second .01- .01 Test run 2 M2W 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Frequency orders of running speed 0 0 0 I I I I I I I I I 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Frequency orders of running speed .01 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Frequency orders of running speed FIGURE Inboard MOTOR axial direction. Test run 3 M21W Test run 4 M36W Test run 5 M65H Test run 6 M55L Test run 7 M6W 62 Shaft Alignment Handbook Third Edition Ơ1 .02 - .01- w Test run 2 M2W .02-1 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x i2x Frequency orders of running speed Ơ1 w .01- Test run 4 M36W 0 I 0 I I I I I I I I I 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Test run 5 M65H Frequency orders of running speed .02 Test run 6 M55L Ơ1 .01 Z Test run 7 M6W 1x 2x 3x 4X 5X 6x 7X 8x 9x 10X 11x 12x Frequency orders of running speed FIGURE Inboard PUMP horizontal direction. maximum amount of rotational force occurs when the grid is in the tilted position where .
