Symmetry and Asymmetry in Dynamics of Mechanical and Structural Engineering

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Engineering and Materials".

Deadline for manuscript submissions: 31 May 2026 | Viewed by 222

Special Issue Editors

School of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Interests: vibration analysis and control; vibro-acoustic analysis; mechanical dynamics; acoustic black hole
School of Mechanical Engineering, Southeast University, Nanjing 211189, China
Interests: structural dynamics; vibration analysis and control; sound absorption and insulation; multi-body dynamics; structural optimization design
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Special Issue Information

Dear Colleagues,

We are delighted to announce a Special Issue on "Symmetry and Asymmetry in Dynamics of Mechanical and Structural Engineering" in Symmetry. The concepts of symmetry and asymmetry play a foundational role in the dynamic behavior of engineering systems, influencing vibration, acoustics, control, and energy transmission. From machinery and marine structures to civil infrastructure and metamaterials, the presence—or intentional breaking—of symmetry leads to rich dynamic phenomena that are critical to system performance, safety, and innovation. Recent advances in design and manufacturing further highlight the need to explore these properties under nonlinear, time-varying, or extreme loading conditions.

This Special Issue invites original research articles and reviews that address theoretical, computational, and experimental studies related to symmetry-driven dynamics. Topics of interest include, but are not limited to, symmetric and asymmetric vibrations, acoustic and vibro-acoustic analysis, acoustic and mechanical metamaterials, energy harvesting, structural health monitoring, and applications in mechanical engineering and structural engineering. We welcome submissions that present novel analytical, numerical, or experimental approaches contributing to this significant and evolving field.

We look forward to receiving your high-quality contributions.

Dr. Xiaofei Du
Dr. Qidi Fu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • mechanical and structural engineering
  • sound and vibration
  • vibration analysis and control
  • acoustic and vibro-acoustic analysis
  • acoustic and mechanical metamaterials
  • sound absorption and insulation
  • energy harvesting
  • multi-body dynamics
  • structural health monitoring
  • engineering applications

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Published Papers (1 paper)

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Research

19 pages, 4544 KB  
Article
Research on Multi-View Phase Shift and Highlight Region Treatment for Large Curved Parts Measurement
by Ronggui Song, Xiaofo Liu, Chen Luo and Yijun Zhou
Symmetry 2025, 17(12), 2077; https://doi.org/10.3390/sym17122077 - 4 Dec 2025
Viewed by 102
Abstract
For large curved parts with complex surfaces, which often exhibit both symmetry and asymmetry in their geometric features, the multi-view combined with the phase shift method and highlight regions treatment method has been proposed and applied to the online measurement system. The hardware [...] Read more.
For large curved parts with complex surfaces, which often exhibit both symmetry and asymmetry in their geometric features, the multi-view combined with the phase shift method and highlight regions treatment method has been proposed and applied to the online measurement system. The hardware components of the measuring system include a self-designed multi-vision platform and a multi-view three-dimensional measurement platform composed of rotating platform, robot and linear guide rail. The overall calibration of the system was conducted to guarantee the effectiveness of the measurement point cloud splicing of each viewing angle. And the system integrates the three-dimensional measurement technology of multi vision combined with the phase shift method and online measure system to realize full coverage and high-precision measurement of the impeller—addressing both its inherent symmetry (regular blade arrangement) and local asymmetry (irregular edge details)—and controls the relative error of the measured size and the actual size within 1%. In addition, the highlight regions treatment method has also been proposed. By adjusting the camera’s exposure time to change the light intensity of the captured images, images under different exposures and their valid pixels are obtained, thereby facilitating the synthesis of a composite image free of highlight phenomena. Experimental results demonstrate that the proposed method can achieve full-coverage measurement of the measured object and effective measurement of highlight regions. Full article
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