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用于承重部件设计中刚度规格确定的螺旋状因科镍合金718结构的数值与实验模态分析

Numerical and Experimental Modal Analysis of a Gyroid Inconel 718 Structure for Stiffness Specification in the Design of Load-Bearing Components.

作者信息

Monkova Katarina, Braut Sanjin, Monka Peter Pavol, Skoblar Ante, Pollák Martin

机构信息

Faculty of Manufacturing Technologies with a seat in Presov, Technical University in Kosice, 080 01 Presov, Slovakia.

Faculty of Technology, Tomas Bata University in Zlin, Nam. T.G. Masaryka 275, 760 01 Zlin, Czech Republic.

出版信息

Materials (Basel). 2024 Jul 21;17(14):3595. doi: 10.3390/ma17143595.

DOI:10.3390/ma17143595
PMID:39063887
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11278721/
Abstract

The study aims to investigate the modal properties of a 60 × 70 × 80 mm gyroid structure made of Inconel 718 with 67.5% porosity. The geometry model for sample production was created using the software PTC Creo, whereas the geometry model for numerical analysis was created using the Python application ScaffoldStructures. FE analysis was performed using ANSYS 2024 R1 software. Free boundary conditions were used in experimental modal analysis to ensure feasibility. The analysis identified the first four natural frequencies ranging from 10 to 16 kHz. The results revealed that the first natural frequency corresponds to the first torsional frequency about the axis, the second to the first flexural mode in the XZ plane, the third to the first bending mode in the YZ plane, and the fourth to the first torsional mode about the axis. Small differences between the results of numerical and experimental modal analysis can be attributed to geometric errors in the manufactured sample, careless removal from the platform, and due to reduction in the complexity of the numerical FE model. Employing modal analysis of a component, the stiffness of a lightweight component can be revealed. In the case of the sample with the cellular structure of gyroid type, relatively high stiffness regarding the material savings was identified, which can be advantageously used in many applications.

摘要

本研究旨在研究一种由孔隙率为67.5%的因科镍合金718制成的60×70×80毫米的类螺旋体结构的模态特性。使用PTC Creo软件创建了用于样品制作的几何模型，而使用Python应用程序ScaffoldStructures创建了用于数值分析的几何模型。使用ANSYS 2024 R1软件进行有限元分析。在实验模态分析中使用自由边界条件以确保可行性。分析确定了前四个固有频率范围为10至16千赫兹。结果表明，第一固有频率对应于绕 轴的第一扭转频率，第二固有频率对应于XZ平面中的第一弯曲模式，第三固有频率对应于YZ平面中的第一弯曲模式，第四固有频率对应于绕 轴的第一扭转模式。数值模态分析和实验模态分析结果之间的微小差异可归因于制造样品中的几何误差、从平台上不小心取下以及数值有限元模型复杂性的降低。通过对部件进行模态分析，可以揭示轻质部件的刚度。对于具有类螺旋体蜂窝结构的样品，在材料节省方面发现了相对较高的刚度，这可有利地用于许多应用中。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/f0fa490f2a9e/materials-17-03595-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/7d5558e9e816/materials-17-03595-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/80c32d5ed716/materials-17-03595-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/3a10e54516d4/materials-17-03595-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/99b0671202e5/materials-17-03595-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/adba41c24204/materials-17-03595-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/722dbd251ffd/materials-17-03595-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/d161d4ffd2cc/materials-17-03595-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/faedd825b2ec/materials-17-03595-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/f0fa490f2a9e/materials-17-03595-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/7d5558e9e816/materials-17-03595-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/80c32d5ed716/materials-17-03595-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/3a10e54516d4/materials-17-03595-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/99b0671202e5/materials-17-03595-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/adba41c24204/materials-17-03595-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/722dbd251ffd/materials-17-03595-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/d161d4ffd2cc/materials-17-03595-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/faedd825b2ec/materials-17-03595-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c288/11278721/f0fa490f2a9e/materials-17-03595-g009.jpg

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本文引用的文献

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3
Evaluating Lattice Mechanical Properties for Lightweight Heat-Resistant Load-Bearing Structure Design.
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Materials (Basel). 2020 Oct 27;13(21):4786. doi: 10.3390/ma13214786.
4
Finite Element Analysis of Orthopedic Hip Implant with Functionally Graded Bioinspired Lattice Structures.具有功能梯度生物启发晶格结构的骨科髋关节植入物的有限元分析
Biomimetics (Basel). 2020 Sep 12;5(3):44. doi: 10.3390/biomimetics5030044.