Zobrazeno 1 - 10
of 335
pro vyhledávání: '"Hongxing Hua"'
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 6, Pp 21-29 (2023)
ObjectivesThe unsteady force of the rotor is the main excitation source of pump-jet shafting vibration, and rotor-stator interaction has an important impact on the characteristics of the unsteady force. Therefore, the suppression method of pump-jet u
Externí odkaz:
https://doaj.org/article/9bcb8fbb388e4b86aaa7fe681c5cdd0c
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 2, Pp 227-234 (2023)
ObjectivesIn order to control the first longitudinal vibration mode of propulsion shafting systems, a dynamic vibration absorber with disc spring negative stiffness is proposed and its experimental verification carried out. MethodsA test bench is est
Externí odkaz:
https://doaj.org/article/33bebec213a14803a9a56ac1c85a8a37
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 1, Pp 141-151 (2023)
ObjectiveThis paper aims to suppress the adverse effects of tip clearance flow on the hydrodynamic performance and unsteady excitation force of a pump-jet propulsor. MethodAs for the pre-swirl stator pump-jet propulsor, an annular flexible seal struc
Externí odkaz:
https://doaj.org/article/441db61ae94e40f68dae19241e4565dc
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 5, Pp 278-288 (2022)
ObjectiveIn order to study the dynamic response characteristics and influence laws of a marine gear transmission-propulsion system, a series of bench tests is carried out.MethodsFirst, a biaxial gear transmission-propulsion system test bench includin
Externí odkaz:
https://doaj.org/article/7d704fd5f3574369932175cf2de10de1
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 1, Pp 1-10 (2022)
Objectives This paper aims to clarify the characteristics of the unsteady force spectrum of a pump-jet operating under inflow turbulence. MethodsThe turbulence grid and Fourier synthesis method are employed to produce inflow turbulence with spatial f
Externí odkaz:
https://doaj.org/article/999b8bcb330842ffb441e237f68b3583
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 39 (2020)
The coupled longitudinal and transverse vibration characteristics of a submarine propeller-shaft-hull system at low frequency are studied in this paper. Two substructures, which are the propeller-shaft subsystem and the submarine hull, are first mode
Externí odkaz:
https://doaj.org/article/e215f32bfe564aeb830baff4e34cb360
Publikováno v:
Shock and Vibration, Vol 2020 (2020)
Spectral methods have previously been applied to analyze a multitude of vibration and acoustic problems due to their high computational efficiency. However, their application to interior structural acoustics systems has been limited to the analysis o
Externí odkaz:
https://doaj.org/article/218fc55c0e7d4c709d50ac7255eef1d5
Publikováno v:
Shock and Vibration, Vol 2017 (2017)
The vibration transmission performance of a floating raft system with attached pipes is investigated in this paper. The frequency response function-based (FRF-based) substructure synthesizing method whose accuracy has been verified by numerical simul
Externí odkaz:
https://doaj.org/article/c997d83f2d1e41e2af836d6fadb78a22
Publikováno v:
Sensors, Vol 14, Iss 2, Pp 3477-3492 (2014)
An efficient spectral element (SE) with electric potential degrees of freedom (DOF) is proposed to investigate the static electromechanical responses of a piezoelectric bimorph for its actuator and sensor functions. A sublayer model based on the piec
Externí odkaz:
https://doaj.org/article/987211a60c6d4b019194f71fad25d5a7
Publikováno v:
Shock and Vibration, Vol 19, Iss 4, Pp 653-668 (2012)
Investigated are modeling and control approaches for vibration analysis of two identical beams which are coupled with fluid and active mechanical links. In the modeling of the coupled beam system, orthogonal functions are used to represent vibration
Externí odkaz:
https://doaj.org/article/8510209913134fb8af27a279c0238c5e