Torsional Vibration Analysis of Blade-Disk-Shaft System by the Finite-Element Method and the Transfer Matrix Method.

康智, 金子; 孝史, 桃尾; 幸正, 岡田

doi:10.1299/kikaic.61.2210

Cited by 6 publications

(5 citation statements)

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“…Therefore, in the process of torsional vibration calculation of the hybrid propulsion shafting, 6 order torque caused by the field harmonic is needed to be considered at the quality point of the motor. According to the torsional vibration model of the hybrid propulsion system as shown in Figure 2, we can know that the second torque and third torque in (16) are the excitation torque at the 41st mass point of the motor.…”

Section: Motor Vibration Mechanism and Motor Excitation Torquementioning

confidence: 99%

“…To sum up, according to the diesel engine exciting force equation (9), motor electromagnetic harmonic exciting force caused by (16) and the forced vibration equation (6) of hybrid propulsion shafting vibration response is calculated. As the phase angle of twin-engine parallel operation changes in the range of 0 degrees to 720 degrees, only the calculation result of the vibration amplitude of the transmission shaft at = 120 ∘ is shown in Figure 9.…”

Section: Motor Vibration Mechanism and Motor Excitation Torquementioning

confidence: 99%

“…With the development of shipbuilding technology, the propulsion system of ship power plant is becoming more and more complex, and the lumped parameter model that describes the torsional vibration of the shaft system is in the process of simplification. Torsional vibration model with branching system has been solved with the system matrix eigenvalue extraction method or the trial-and-error search method based on the transfer matrix [12][13][14][15]. With the continuous improvement of the finite element software, the finite element method is used to calculate the torsional vibration of the complex ship propulsion shafting [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Torsional vibration model with branching system has been solved with the system matrix eigenvalue extraction method or the trial-and-error search method based on the transfer matrix [12][13][14][15]. With the continuous improvement of the finite element software, the finite element method is used to calculate the torsional vibration of the complex ship propulsion shafting [16,17]. As the operating conditions of hybrid propulsion system are more complex, the torsional vibration mechanism is more complex.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Study on Vibration of Marine Diesel-Electric Hybrid Propulsion System

Xiao

Zhou

et al. 2016

Mathematical Problems in Engineering

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This study analyzes the characteristics of hybrid propulsion shafting and builds mathematical models and vibration equations of shafting using the lumped parameter method. Main focus is on the asymmetric double diesel propulsion shafting operation process and the impact of the phase angle and motor excitation on torsional vibration of shafting. Model result is validated by testing results conducted on double diesel propulsion shafting bench. Mathematical model and model-building methods of shafting are correct.

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Section: Motor Vibration Mechanism and Motor Excitation Torquementioning

confidence: 99%

Section: Motor Vibration Mechanism and Motor Excitation Torquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study on Vibration of Marine Diesel-Electric Hybrid Propulsion System

Xiao

Zhou

et al. 2016

Mathematical Problems in Engineering

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“…In the analysis of the natural frequencies of the blade-disk-shaft system, the whole system including the generator has to be modeled, and therefore, the number of bladed disk systems included in the analysis model becomes sometimes huge. Consequently, because it is sometimes difficult to apply FEA directly in the analysis due to the enormous computational cost, the novel analysis methods using the equivalent reduced model (30) and the substructure synthesis method (31) (32) have been developed and applied in the blade design. In addition, with the increase of the blade height, the coupled vibration between the one nodal diameter mode of a bladed disk and the shaft bending mode begins to become a problem, and the analysis method of the blade-disk-shaft system for the bending mode has been developed (33) .…”

Section: Technology On Analysis Of Natural Frequencymentioning

confidence: 99%

Progress of Technology on Mechanical Design of Steam Turbine Blade in Japan

Kaneko

2013

JSDD

Self Cite

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In Japan, the capacity and the efficiency of the steam turbine have been remarkably increased since 1950s. It was the technology on the long last blade of the low pressure steam turbine that made it possible. At present, the longest last blade made of steel in Japan is 50 inch long for 3600 rpm turbine, 74 inch long for 1800 rpm turbine. These long blades have been developed by the own technology of the Japanese turbine maker, and the Japanese technology on the long last blade is leading in the world. The development of the longer last blade requires the cutting-edge technology from the aspect of the fluid dynamics, the material strength, the vibration engineering, and so on, because the longer last blade causes the increase of the steam velocity and the centrifugal force, the decrease of the natural frequency, and so on. This paper describes the history and the prospect on the technology required to develop the last blade of the steam turbine, focusing on the aspect of the mechanical design.

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Finite element linear and nonlinear, static and dynamic analysis of structural elements: a bibliography (1992‐1995)

Mackerle

1997

Engineering Computations

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This bibliography provides a list of literature references on finite element analysis of basic structural elements. Presented listings contain papers published in scientific journals, conference proceedings, and theses/dissertations retrospectively to 1992. References have been retrieved from the author's database, MAKEBASE. They are grouped into the same sections as described in the first part of this paper, and sorted alphabetically according to the first author's name. In some cases, if a specific paper is relevant for several subject categories, the same reference is listed under respective section headings.Subjects not included in this bibliography: fracture mechanics problems; contact problems; thermal problems. References dealing with developments of various finite elements, stability problems and those analysing composite and concrete structures are included. Beams, columns, rods and bars (BEA)

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Torsional Vibration Analysis of Blade-Disk-Shaft System by the Finite-Element Method and the Transfer Matrix Method.

Cited by 6 publications

References 0 publications

Study on Vibration of Marine Diesel-Electric Hybrid Propulsion System

Study on Vibration of Marine Diesel-Electric Hybrid Propulsion System

Progress of Technology on Mechanical Design of Steam Turbine Blade in Japan

Finite element linear and nonlinear, static and dynamic analysis of structural elements: a bibliography (1992‐1995)

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