Acoustic behaviour of 3D printed titanium perforated panels

Arjunan, Arun; Baroutaji, Ahmad; Latif, Ahmad Abdul

doi:10.1016/j.rineng.2021.100252

Cited by 36 publications

(8 citation statements)

References 52 publications

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“…Other than for the two frequencies 500 Hz and 1000 Hz, the differences between the curves were around 2.5 dB, which is consistent with accepted variation in measurement reproducibility for acoustic measurements [56]. Consequently, the sound reduction index at 1/3rd octave was used to compute the weighted index (R w ), which is the single number quantity that is used to represent the acoustic insulation of the wall.…”

Section: Validation Of the Acoustic Modelsupporting

confidence: 77%

Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions

2021

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Steel studs are an inevitable part of drywall construction as they are lightweight and offer the required structural stability. However, the studs act as sound bridges between the plasterboards, reducing the overall sound insulation of the wall. Overcoming this often calls for wider cavity walls and complex stud decoupling fixtures that increase the installation cost while reducing the floor area. As an alternative approach, this research reveals the potential of perforated studs to improve the acoustic insulation of drywall partitions. The acoustic and structural performance is characterized using a validated finite element model that acted as a prediction tool in reducing the number of physical tests required. The results established that an acoustic numerical model featuring fluid-structure-interaction can predict the weighted sound reduction index of a stud wall assembly at an accuracy of ±1 dB. The model was used to analyze six perforated stud designs and found them to outperform the sound insulation of non-perforated drywall partitions by reducing the sound bridging. Overall, the best performing perforated stud design was found to offer improvements in acoustic insulation of up to 4 dB, while being structurally compliant.

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Section: Validation Of the Acoustic Modelsupporting

confidence: 77%

Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions

2021

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“…[31] In addition, the porous layer achieved by lattice design provides an effective interaction and bonding with micro-perforated panels for outstanding performance. [32] The metal alloys fabricated through the AM possess various types of defects. As the VA mainly uses the density and Young's modulus values of the AM metal alloys, the porosity and cracking through the surface can be more susceptible to failure of AM parts by vibrations.…”

Section: Introductionmentioning

confidence: 99%

A Review on Vibration Characteristics of Additively Manufactured Metal Alloys

Azher,

Shah,

Bakhtari

et al. 2024

Adv Eng Mater

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The advent of additive manufacturing (AM) has dramatically shifted the manufacturing sector conceptualization, design, and creation of products. AM is poised to revolutionize goods production by establishing a new manufacturing paradigm, from reducing lead times to enabling rapid prototyping. AM can facilitate the production of complicated geometries and create functioning components with distinctive features for aerospace and automotive applications. However, defects such as pores, voids, interfaces, and inclusions can impair the quality and functionality of AM components. Vibration Analysis (VA) has become a popular tool for the dynamic qualification and testing of products and non‐destructive testing, but the literature lacks a comprehensive review of VA applied to AM. Hence, this paper summarizes recent advances in the application of VA for identifying and characterizing flaws in metal alloys, including titanium, aluminum, and nickel‐based alloys produced by AM. The review also includes studies on defects, such as porosity, cracks, and inclusions, and their effect on VA. The article concludes with a discussion of the limitations of VA for defect characterization and future research directions. Overall, VA is a promising non‐destructive testing method for quality assurance in AM and offers insights on overcoming the difficulties for further development and application of this technology.This article is protected by copyright. All rights reserved.

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“…[ 14 ] Titanium alloys have not been cast using the traditional method frequently due to the strong reactivity of liquid titanium with mold sands. [ 15,16 ] Moreover, the low thermal conductivity of titanium alloys makes their machining inherently challenging and results in a high cutting temperature. [ 17 ] Additionally, the spring‐back characteristics of these alloys make it difficult to form them at ambient temperature, even under annealed conditions.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Mosallanejad,

Abdi,

Karpasand

et al. 2023

Adv Eng Mater

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The restricted number of materials available for additive manufacturing (AM) technologies is a determining impediment to AM growing into sectors and providing supply chain relief. AM, in particular, is regarded as a trustworthy manufacturing technology to replace the traditional ones for Ti alloy components. Furthermore, the AM processability of Ti alloys and their features, such as microstructure, texture, and mechanical properties, is strongly dependent on the chemical composition of the processed alloy. It is essential to consider the ultimate applications as well. β Ti alloys are gaining popularity in the biomedical industry, while α + β Ti alloys are increasingly utilized for producing components in the automotive and aerospace sectors. Consequently, the topic has garnered considerable interest, and the current text reviews the advances during the last 10 years in this area to facilitate the pathway from the demanded Ti alloy to the best‐fit AM procedure. While systematically reviewing the works published in the literature, the current text attempts to establish a link between the production method, feedstock type, chemical composition, and the ultimate application. This review also features practical applications of Ti components produced by metal AM methods and offers prospective possibilities and industrial applications.

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Acoustic behaviour of 3D printed titanium perforated panels

Cited by 36 publications

References 52 publications

Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions

Perforated Steel Stud to Improve the Acoustic Insulation of Drywall Partitions

A Review on Vibration Characteristics of Additively Manufactured Metal Alloys

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

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