Machinery vibration: Origins, impressions and cures
- Bechtel Petroleum Operations, Inc., Tupman, CA (United States)
The current trend toward high performance (speed, power, flow, etc.) and low eight are causing new machinery dynamics problems. Vibration diagnostics engineering of rotor-bearing-casing systems must consider both internal and external influences to effectively predict and diagnose these problems. It is assumed that machinery vibration data are free from ambiguity, error, conform to a standard and clearly identify the physical cause(s) responsible for vibration. Rotor vibration due to internal forces are described: unbalance force characteristics; response characteristics; and rules of rotor fundamental response. Rotor vibration due to external forces include: rotating aerodynamic stall; oil whirl; oil whip; structural resonance; vane/blade passing vibration; misalignment; rotor rubbing; gear mesh vibrations; and shaft crack. These are also discussed.
- OSTI ID:
- 6876397
- Journal Information:
- Hydrocarbon Processing; (United States), Journal Name: Hydrocarbon Processing; (United States) Vol. 74:1; ISSN HYPRAX; ISSN 0018-8190
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ALIGNMENT
CRACKS
DIAGNOSTIC TECHNIQUES
EFFICIENCY
EQUIPMENT
FUNCTIONS
LUBRICANTS
LUBRICATING OILS
MACHINERY
MECHANICAL VIBRATIONS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
RESPONSE FUNCTIONS
ROTORS
TURBINE BLADES
TURBOMACHINERY