Three methods for studying coupled vibration in a multi flexible disk rotor system

Chiu, Yi-Jui; Li, Xiaoyun; Chen, Yi-Cheng; Yang, Cheng-Hsiung; Lin, I-Hsiang

doi:10.1007/s12206-017-1015-2

Cited by 18 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, five peaks can be seen. From Chiu et al 29 and from comparison with Table 6, the frequencies of the third peak (near 81 Hz) are the blades' first mode guides. The second peaks (near 70 Hz) are the cracked-blade mode guides (1a 21 , 72.56 Hz).…”

Section: Numerical Resultsmentioning

confidence: 93%

“…The second peaks (near 70 Hz) are the cracked-blade mode guides (1a 21 , 72.56 Hz). From Chiu et al, 29 the first peak is the support frame. From the experimental results, two interesting phenomena can be observed.…”

Section: Numerical Resultsmentioning

confidence: 95%

“…First, the results of the experiment conform to those determined by the AMM and FEM. Second, the method utilized cannot completely display flexible disk frequencies of the system and in the detail found in Chiu et al, 29 for example, 1a (except 1a 21 ) and 1b modes.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…In Zhou and colleagues, 21,22,29 the authors used three kinds of FEM software to simulate a rotor system. Based on the results in those references, the authors found ANSYS software to be most accurate and observed that errors using ANSYS were less than 1%.…”

Section: Femmentioning

confidence: 99%

“…Cui et al 27,28 studied the problems related to the rotor system. Chiu et al 29 used the experimental method, FEM, and AMM to investigate coupled-vibration phenomena in a multi-flexible disk rotor. Some beneficial and interesting results were presented, including the fact that the experimental method could not distinguish flexible disk frequencies of the system completely and in detail.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Exploration of coupled-vibration phenomena in multi-disk rotor with blades with multi-cracks

Chiu

Yang

et al. 2019

Advances in Mechanical Engineering

Self Cite

View full text Add to dashboard Cite

Based on previous research results obtained in the authors' laboratory, in this article, we develop, refine, and summarize the disk-transverse, blade-bending, and shaft-torsion coupled-vibration phenomena of a multi-disk rotor with blades with multiple cracks. Three methods are used to explore these phenomena, namely, the finite element method, experimental method, and assumed mode method. The assumed mode method is primary, and the others play subsidiary roles. Some beneficial and interesting results are presented in this article. First, the authors used the assumed mode method and finite element method (ANSYS) to explore and compare the change rules of the natural frequencies and mode shapes in a rotor. Second, it is pointed out how multi-cracks affect the coupled-vibration phenomena of a single-/multi-disk(s) system. Numerical calculation results also show that the crack depth, number of crack blades, as well as the symmetry of the crack blades, affect the natural frequencies. Finally, the experimental results are discussed and the advantages and limitations of using each of the three methods are given. While the experimental measurement method advanced herein may have some limitations, the results should guide future research.

show abstract

Section: Numerical Resultsmentioning

confidence: 93%

Section: Numerical Resultsmentioning

confidence: 95%