Experimental and Numerical Modal Analysis of a Composite Rocket Structure

Finite Element Analysis (FEA) is a powerful tool that can aid in the engineering design process to reduce cost and time. However, it is best used in conjunction with experimental data, through which its numerical results can be verified. This paper presents the experimental and numerical modal analy...

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Main Authors: Taruansh Qaumi, Seyed M. Hashemi
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/10/10/867
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author Taruansh Qaumi
Seyed M. Hashemi
author_facet Taruansh Qaumi
Seyed M. Hashemi
author_sort Taruansh Qaumi
collection DOAJ
description Finite Element Analysis (FEA) is a powerful tool that can aid in the engineering design process to reduce cost and time. However, it is best used in conjunction with experimental data, through which its numerical results can be verified. This paper presents the experimental and numerical modal analyses of an experimental rocket aerostructure to verify the accuracy of the numerical models. This aerostructure has been through flight loads and a recovery. The first numerical results for the rocket showed a 96% difference with the experimental ones. Subsequently, three mass refinements were made to create calibrated FEM models whose results differed from the experimental ones by 19% to 8%. Additionally, as expected, the FEM results tended to overestimate the stiffness of structures. The numerical simulations for all components were performed through ANSYS software, and the experiments were conducted using the hammer tap test with laser vibrometers as sensors.
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spelling doaj.art-84cfc5a3b5db41508558be42175544542023-11-19T15:17:15ZengMDPI AGAerospace2226-43102023-10-01101086710.3390/aerospace10100867Experimental and Numerical Modal Analysis of a Composite Rocket StructureTaruansh Qaumi0Seyed M. Hashemi1Department of Aerospace Engineering, Toronto Metropolitan University (Formerly Ryerson University), Toronto, ON M5B 2K3, CanadaDepartment of Aerospace Engineering, Toronto Metropolitan University (Formerly Ryerson University), Toronto, ON M5B 2K3, CanadaFinite Element Analysis (FEA) is a powerful tool that can aid in the engineering design process to reduce cost and time. However, it is best used in conjunction with experimental data, through which its numerical results can be verified. This paper presents the experimental and numerical modal analyses of an experimental rocket aerostructure to verify the accuracy of the numerical models. This aerostructure has been through flight loads and a recovery. The first numerical results for the rocket showed a 96% difference with the experimental ones. Subsequently, three mass refinements were made to create calibrated FEM models whose results differed from the experimental ones by 19% to 8%. Additionally, as expected, the FEM results tended to overestimate the stiffness of structures. The numerical simulations for all components were performed through ANSYS software, and the experiments were conducted using the hammer tap test with laser vibrometers as sensors.https://www.mdpi.com/2226-4310/10/10/867modal analysiscompositefinite element analysisrocketrylaser vibrometry
spellingShingle Taruansh Qaumi
Seyed M. Hashemi
Experimental and Numerical Modal Analysis of a Composite Rocket Structure
Aerospace
modal analysis
composite
finite element analysis
rocketry
laser vibrometry
title Experimental and Numerical Modal Analysis of a Composite Rocket Structure
title_full Experimental and Numerical Modal Analysis of a Composite Rocket Structure
title_fullStr Experimental and Numerical Modal Analysis of a Composite Rocket Structure
title_full_unstemmed Experimental and Numerical Modal Analysis of a Composite Rocket Structure
title_short Experimental and Numerical Modal Analysis of a Composite Rocket Structure
title_sort experimental and numerical modal analysis of a composite rocket structure
topic modal analysis
composite
finite element analysis
rocketry
laser vibrometry
url https://www.mdpi.com/2226-4310/10/10/867
work_keys_str_mv AT taruanshqaumi experimentalandnumericalmodalanalysisofacompositerocketstructure
AT seyedmhashemi experimentalandnumericalmodalanalysisofacompositerocketstructure