Shaft Alignment Handbook

Piotrowski, John; Saunders, H.

doi:10.1115/1.3269808

Cited by 62 publications

(61 citation statements)

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“…All specific failures in rotating machinery have their own characteristics of vibrations. Measurements and analysis of the vibratory behaviour of the system and vibration changes leads to the detection of problems and faults [1,2].…”

Section: Vibration Analysismentioning

confidence: 99%

“…Most common failure of rotating machinery is misalignment of shafts connected by couplings [1]. Misalignment could be parallel or angular.…”

Section: Vibration Analysismentioning

confidence: 99%

“…Misalignment could be parallel or angular. In practice, misalignment is usually combination of parallel and angular misalignment [1,3,4]. In frequency spectrum of severe misalignment are present orders of rotational frequency (1X, 2X, ...) even up to 10X in radial and axial direction.…”

Section: Vibration Analysismentioning

confidence: 99%

See 2 more Smart Citations

Vibration Analysis and Repair Process for the Ventilation System for Smoke Drain in the Thermal Power Plant

Nezirić¹,

Isić²,

Džiho³

2018

Applied Engineering Letters

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Abstract:Vibrations are common phenomenon in the rotating machinery, which could carry important information about condition of the rotating machinery. All specific failures in rotating machinery have their own characteristics of the vibrations. By measuring and analysis of vibrations cause of increased vibrations could be determined. Since misalignment and rotating looseness have similar frequency spectrum characteristics, it is difficult to determine which one of the failures is present. When cause of increased vibrations is determined, it is possible to plan the future steps for the repairing and neutralising present cause of the possible failure. Process of vibration analysis followed by present cause of increased vibration in rotating machinery repairing is presented in this paper through example on the ventilation system for smoke drain in the thermal power plant. ARTICLE HISTORY

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Section: Vibration Analysismentioning

confidence: 99%

“…Most common failure of rotating machinery is misalignment of shafts connected by couplings [1]. Misalignment could be parallel or angular.…”

Section: Vibration Analysismentioning

confidence: 99%

See 1 more Smart Citation

Vibration Analysis and Repair Process for the Ventilation System for Smoke Drain in the Thermal Power Plant

Nezirić¹,

Isić²,

Džiho³

2018

Applied Engineering Letters

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“…In rotating machinery misalignment is a serious problem [1]. It can lead to stress and it can cause severe damage leading to malfunction or even breakdown.…”

Section: Introductionmentioning

confidence: 99%

Detection of Coupling Misalignment by Extended Orbits

Monte

Verbelen

Vervisch

2015

Experimental Techniques, Rotating Machinery, and Acoustics, Volume 8

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In this paper a 'SpectraQuest' demonstrator is used to introduce misalignment into a rotating machinery set-up. Depending on the coupling used in the set-up, angular and/or parallel misalignment can be brought in the rotating system. Traditionally, the data captured by accelerometers is transferred into the frequency domain in order to interpret the vibrations measured by the accelerometers. The frequency domain has proven its usefulness but even the time domain can come in handy to draw the right conclusions regarding to misalignment in a rotating set-up. Orbit plots display the integrated data captured by accelerometers, in order to display the movement of the rotating shaft. The influence of the misalignment and imbalance on these orbits will be discussed.

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“…Precision alignment significantly increases lifetime, by using tools, such as dial indicators, laser alignment tools and tolerances tools. A misalignment tolerance guide and charts/tables, based on speed, are presented in Piotrowski (2007). Balancing is another important MA, since mass unbalance is a great source of vibration.…”

Section: Alignment and Balancingmentioning

confidence: 99%

Review on Approaches for Condition Based Maintenance in Applications with Induction Machines located Offshore

Cibulka¹,

Ebbesen²,

Hovland³

et al. 2012

MIC

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This paper presents a review of different approaches for Condition Based Maintenance (CBM) of induction machines and drive trains in offshore applications. The paper contains an overview of common failure modes, monitoring techniques, approaches for diagnostics, and an overview of typical maintenance actions. Although many papers have been written in this area before, this paper puts an emphasis on recent developments and limits the scope to induction machines and drive trains applied in applications located offshore.

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Shaft Alignment Handbook

Cited by 62 publications

References 0 publications

Vibration Analysis and Repair Process for the Ventilation System for Smoke Drain in the Thermal Power Plant

Vibration Analysis and Repair Process for the Ventilation System for Smoke Drain in the Thermal Power Plant

Detection of Coupling Misalignment by Extended Orbits

Review on Approaches for Condition Based Maintenance in Applications with Induction Machines located Offshore

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