Dynamic modeling and vibration analysis of planar pipeline with partial constrained layer damping treatment: Theoretical and experimental studies

Ma, Hongwei; Sun, Wei; Ji, Wenhao; Zhang, Yu; Liu, Xiaofeng; Liu, Honghao

doi:10.1016/j.compstruct.2023.117476

Cited by 5 publications

(2 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then the statics condensation method is introduced to eliminate the additional DOFs. From the second equation of equation (11), the additional DOFs can be expressed as…”

Section: Spatial 8-node Solid-nc Elementmentioning

confidence: 99%

“…The basic principle of SAM is to derive the dynamics equation of the structural system based on the energy method, and further adopt the truncation technique to reduce the dimension of the motion equation, thus SAM has high computational efficiency. 10,11 The following is a review of the literature on using SAM to study pipeline vibration. Païdoussis et al 12,13 studied the nonlinear vibration characteristics of the flow transmission pipeline system based on the orthogonal decomposition method and analyzed the nonlinear characteristics of the pipeline system by setting different spring arrangements and spring stiffness.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A general parametric finite element modeling and stress response analysis methods for pipeline system using the nonconforming solid element

Ji,

Sun,

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part G:

Self Cite

View full text Add to dashboard Cite

In the dynamic topology optimization design of pipeline system, parametric finite element modeling (PFEM) is needed to improve the model reconstruction efficiency. Taking a typical spatial single pipeline as the research object, this paper innovatively presents a PFEM method of pipeline system based on the newly constructed nonconforming solid (Solid-NC) element. The stiffness and mass matrices of the spatial 8-node Solid-NC element with second-order boundary accuracy are obtained by introducing the node-free displacement items and statics condensation method. The PFEM method of the pipeline body is proposed by selecting the straight-line segment lengths as the pipeline shape control parameters. The PFEM method of the pipeline is described in detail, including the node coordinate solutions of straight-line and curved arc segments based on the direction vector method and vector decomposition method, respectively, and the simulation of the clamp mechanical properties considering the actual pre-tightening state of the clamp. Furthermore, the modal analysis is carried out, the node stress response solution is solved based on the stress smoothing method, and the effectiveness of the PFEM method is verified through experiment. Finally, the mesh quality and model reconstruction efficiency of the PFEM method is analyzed, the results show that the developed PFEM method has higher mesh quality and fast model reconstruction speed, and the model reconstruction time is shortened by 544.5 times at most compared with ANSYS software.

show abstract

“…Then the statics condensation method is introduced to eliminate the additional DOFs. From the second equation of equation (11), the additional DOFs can be expressed as…”

Section: Spatial 8-node Solid-nc Elementmentioning

confidence: 99%