Results 1 to 10 of about 475,454 (216)
Energies, 2018 The winding is the core component of a transformer, and the technology used to diagnose its current state directly affects the operation and maintenance of the transformer.
Xiaomu Duan +4 more
doaj +3 more sources
Frontiers in Earth Science, 2023 On 3 August 2014, a magnitude Ms 6.5 earthquake struck Ludian County, Zhaotong City, Yunnan Province, causing grave losses of life and property in the Longtoushan Town Basin near the fault. In this study, a three-dimensional model of the Longtoushan Town
Chengcheng Li +7 more
doaj +1 more source
Vibration analysis of ball bearing considering waviness under high speed and an axial load [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 Based on the rolling bearing vibration measurement principle in ISO standard, a nonlinear dynamic model of ball bearing is built and motion equations of the inner ring, outer ring, and rolling elements are derived by using Lagrange’s equation.
P.P Hou, L.Q. Wang, Q.Y. Peng
doaj +1 more source
Mathematics, 2021 To study the vibration characteristics of deep-groove ball bearing, considering the influence of sliding, the dynamic model of the DGB 6205 system is established in this paper.
Fanjie Li, Xiaopeng Li, Dongyang Shang
doaj +1 more source
Vibration characteristics of a floor sample [PDF]
The Journal of the Acoustical Society of America, 1981 Vibration tests consisting of heel impacts by a person, shaker impacts, and random shaker excitations were carried out on an 8.5 × 8.3 m steel-joist-concrete floor. Structural variations to the floor sample included edge conditions restrained and free; two slab thicknesses; changes in joist stiffness; and inclusion of transverse bracing. The lower four
Rainer, J. H., Pernica, G.
openaire +3 more sources
工程科学学报, 2022 An AFT oxidation fan room is a kind of composite structure of reinforced concrete structure supporting the steel tank in the desulfurization process. It is a common structural form of a power plant. The obvious vibration generated by the structure is not
Bo SONG, Bang LI, Nan XIAO, Jun LAO
doaj +1 more source
Energies, 2021 In a sudden load increasing process (SLIP), the hydroelectric generating system (HGS) experiences a severe vibration response due to the sudden change of the hydraulic-mechanical-electric parameters (HMEPs).
Yixuan Guo +6 more
doaj +1 more source
Vibration Characteristics of Curved Beams [PDF]
49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference <br> 16th AIAA/ASME/AHS Adaptive Structures Conference<br> 10t, 2008 The paper presents a concise framework studying the coupled vibration of curved beams, whether the curvature is built-in or is caused by loading. The governing equations used are both geometrically-exact and fully intrinsic, with a maximum degree of nonlinearity equal to two.
Chong-seok Chang, Dewey Hodges
openaire +1 more source
Applied Sciences, 2022 Bistable piezoelectric energy harvester (BPEH) can remove mechanical energy waste, which is expected to realize the self-power supply of wireless sensors. To further improve the energy harvesting efficiency, we designed an improved bistable piezoelectric
Xuhui Zhang +7 more
doaj +1 more source