Vibration Suppression Analysis of Spatial Pipelines with Viscoelastic Damping Layer Based on the Topology Optimization
Source abstract
Abstract
Under the premise of a certain damping layer volume, topological optimization design of its attach shape can enable a pipeline system to achieve optimal damping performance. This paper proposes a topology optimization method for vibration reduction in spatial pipelines with damping layers based on a finite element model. A parametric modeling approach is developed for the clamp-supported spatial pipeline with viscoelastic damping layer, and both clamp-support damping and damping layer material damping are considered. Using the progressive optimization method, an optimization model is established with the modal loss factor of the pipeline system as the objective function, the existence state of each damping layer element as the design variable, and the material volume as the constraint. Further, a case study is conducted. The correctness of the dynamic model is verified by hammer and frequency sweep tests. The optimization results indicate that retaining only 30% of the damping layer volume reduces weight by 70%, while vibration attenuation performance decreases by merely 2.46% compared to the fully coated configuration, demonstrating the effectiveness of the proposed topology optimization approach.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Topology Optimization in Engineering · Vibration and Dynamic Analysis · Acoustic Wave Phenomena Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
Key Laboratory of Vibration and Control of Aero-Propulsion Systems Ministry of Education of China, Northeastern University, Shenyang 110819, China
State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Funding
National Natural Science Foundation of China · Postdoctoral Fellowship Program of CPSF · Fundamental Research Funds for the Central Universities
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