Facilities Instructions, Standards, & Techniques

Facilities Instructions, Standards, & Techniques
اسم المؤلف
غير معروف
التاريخ
1 مارس 2020
المشاهدات
التقييم
(لا توجد تقييمات)
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بحث بعنوان
Facilities Instructions, Standards, & Techniques Volume 2-2
Previously Published as Power O&m Bulletin No. 13
Field Balancing Large Rotating Machinery
Engineering Division
Facilities Engineering Branch
Denver Office
Denver, Colorado
United States Department of the Interior
Bureau of Reclamation
Contents
Page
Theory of Balancing . 1
Instrumentation and Measurement 2
Vector Techniques 4
Vector Addition 4
Vector Subtraction . 5
Component Vectors 5
Static Balancing . 6
Static Balancing – Example . 6
Dynamic Balancing 9
Dynamic Balancing – Example 9
Analytical Static Balancing – Example . 16
Analytical Dynamic Balancing – Example
Contents-continued
Figures
Figure Page
I Elevation of Rotor Having Unbalanced Mass 2
2 Plan of Rotor . 2
3 Vibration Amplitude Measuring Points Location . 3
4 Vector Oa Direction and Magnitude . 4
5  Vector Addition . 4
6 Vector Subtraction . 5
7 Component Vectors . 6
8 Static Balancing – Vectors 8
9 Dynamic Unbalanced Rotor 9
10 Dynamic Balancing – Upper Guide Bearing . 11
11 Dynamic Balancing – Lower Guide Bearing . 12
12 Dynamic Balancing – Lower Guide Bearing, Check . 14
13 Dynamic Balancing – Balance Weight Distribution . 15
14 Conditions at the Upper Guide Bearing . 16.
15 Weight Distribution on Rotor Arms 17
16 Deflections at Upper Guide Bearing . 19
17 Deflections at Lower Guide Bearing . 19
18 Divided Weight for Upper Rotor Arms No. 2 and 3 21
19 Divided Weight for Lower Rotor Arms No. 5 and 6
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