INTER-NOISE and NOISE-CON Congress and Conference Proceedings最新文献_第3页

Airborne acoustic assessment of impact-resistant fitness flooring systems 抗冲击健身地板系统的空气声学评估

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0063

Stalin Vera

{"title":"Airborne acoustic assessment of impact-resistant fitness flooring systems","authors":"Stalin Vera","doi":"10.3397/nc_2024_0063","DOIUrl":"https://doi.org/10.3397/nc_2024_0063","url":null,"abstract":"Fitness facilities in residential and mixed-used commercial buildings introduce important acoustic design challenges that must be considered in a building. Cardio activities such as running on treadmills, group classes for high intensity training, and weight training areas introduce\u0000 high levels of unwanted noise and vibration into a building structure. Isolated floor constructions are generally coordinated and implemented during design but are not practical when buildings are completed and occupied. Impact-resistant fitness flooring systems are typically explored and\u0000 installed as an alternate approach to reduce the transmission of impact noise and vibration. Non-standardized field airborne noise measurements of weight drops were conducted on an existing gym and on four possible impact-resistant fitness flooring upgrades to assess the reduction of impact\u0000 noise levels in the offices located below the gym. The measurements were also compared to the HVAC background noise levels to observe the increase above background conditions and provide a subjective evaluation. The results of the measurements show that impact-resistant fitness flooring systems\u0000 provide a noticeable reduction of impact noise, compared to standard fitness flooring systems. The results also show that impact-resistant fitness flooring systems that include specialty engineered shock pads as a base layer provide a significant reduction of impact noise levels.","PeriodicalId":514177,"journal":{"name":"INTER-NOISE and NOISE-CON Congress and Conference Proceedings","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141833871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interpretation and use of coherence in multi-channel measurements 多通道测量中相干性的解释和使用

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0181

Tyler Dare, Sean Collier

引用次数: 0

Analysis, Design & Installation of Vibration Isolation for Lightweight Helipads 轻型直升机停机坪隔振装置的分析、设计和安装

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0045

Ashwin Dias, Alfredo Rodrigues, Freddy Saddik

{"title":"Analysis, Design & Installation of Vibration Isolation for Lightweight Helipads","authors":"Ashwin Dias, Alfredo Rodrigues, Freddy Saddik","doi":"10.3397/nc_2024_0045","DOIUrl":"https://doi.org/10.3397/nc_2024_0045","url":null,"abstract":"This case study discusses the design and manufacturing steps for the installation of a vibration isolation solution for two lightweight helidecks installed on the rooftop of an existing medical center building. The design stage involved the analysis of the relevant information, involving\u0000 several specialties, such as Acoustics (for sources of vibration and acoustic performance requirements), Heliport Design (for the type of aircraft, MTOW, number of supports, static and dynamic loads) and Structural (for the types of connections to the existing building structure). A collaborative\u0000 effort between CDM Stravitec and the helideck supplier led the design through a progressive and iterative process where a final design that responded to the strong acoustical requirements and the complex nature of a fully functional and integrated lightweight helideck. Along the design, compromises\u0000 where made ensure that requirements are met for both acoustic and structural performance. The solution delivered was a prefabricated box, that could easily be installed on site, comprised the necessary components such as springs and uplift restraints to deal with the challenging aspects of\u0000 the isolation of lightweight helidecks. The paper also discusses the challenges and best practices encountered during the production and installation of the system.","PeriodicalId":514177,"journal":{"name":"INTER-NOISE and NOISE-CON Congress and Conference Proceedings","volume":" 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141834002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Creating noise contour maps utilizing the NIOSH Noise Mapper App (A pilot study) 利用 NIOSH Noise Mapper 应用程序绘制噪声等值线图（试点研究）

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0030

Yousef Elmashae, Edward Zechmann

{"title":"Creating noise contour maps utilizing the NIOSH Noise Mapper App (A pilot study)","authors":"Yousef Elmashae, Edward Zechmann","doi":"10.3397/nc_2024_0030","DOIUrl":"https://doi.org/10.3397/nc_2024_0030","url":null,"abstract":"High noise levels can lead to physical and psychological stress, reduced productivity, and permanent hearing loss in workers. Traditional noise monitoring techniques indicate that mine workers, for example, consistently have a higher level of noise exposure when compared to workers\u0000 in other heavy industries. It is critical to conduct risk assessments, identify noise sources, and control them to prevent occupational noise-induced hearing loss (ONIHL). The National Institute for Occupational Safety and Health (NIOSH) has recently developed the smartphone-based NIOSH Noise\u0000 Mapper Application, which generates a noise contour map to enable individuals, workers, and hearing conservation professionals to apply the hierarchy of controls for optimized prioritization and focused targeting of the most effective hearing conservation interventions. Preliminary testing\u0000 of the Noise Mapper app has been carried out in a hemi-anechoic chamber at the NIOSH Mining Laboratory in Pittsburgh. The results demonstrate that the Noise Mapper app can quickly and cost-effectively generate adequate noise contour maps to identify noise hazards and relevant noise-generating\u0000 machinery to prioritize and target the most effective interventions. However, additional testing is needed to evaluate the Noise Mapper app's performance in real-world environments and its ability to measure multiple sound sources. This new tool supplements, but does not, replace traditional\u0000 methods of creating noise contour maps.","PeriodicalId":514177,"journal":{"name":"INTER-NOISE and NOISE-CON Congress and Conference Proceedings","volume":" 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141834071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measuring in-situ air handling unit sound power levels for use in predicting interior sound pressure levels from replacement units 测量现场空气处理装置的声功率级，用于预测替换装置的室内声压级

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0115

Adam Jenkins

引用次数: 0

Construction and validation of computational techniques as part of a holistic approach to complex engineering design 构建和验证计算技术，作为复杂工程设计整体方法的一部分

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0135

Sogand Okhovatian, Viken N. Koukounian

{"title":"Construction and validation of computational techniques as part of a holistic approach to complex engineering design","authors":"Sogand Okhovatian, Viken N. Koukounian","doi":"10.3397/nc_2024_0135","DOIUrl":"https://doi.org/10.3397/nc_2024_0135","url":null,"abstract":"As a full-service provider of bespoke solutions to environmental noise problems, there is a need to have a precise understanding of the performance of our engineered products and complex assemblies. More specifically, there are risks, as well as limitations, to relying solely on a single\u0000 scientific method-e.g., empirical, computational, numerical or analytical. In the following paper, we describe the validation process of sophisticated computational software-a suite of Siemens software-to bolster our risk assessment practices. Although computational tools generally require\u0000 extensive 'calibration,' our interest in pursuing the software is to model diverse constraints and environmental conditions of projects, which cannot be 'simply' assessed using empirical, numerical and analytical tools. Herein are presented examples of projects utilizing our holistic approach\u0000 to assuring the performance of our engineering solutions. More specifically, we employ aero-vibro-acoustical simulations to model the aero-vibro-acoustical performance (e.g., airflow and pressure drop, dynamic insertion loss) of our industrial acoustic silencers (and similar complex assemblies).","PeriodicalId":514177,"journal":{"name":"INTER-NOISE and NOISE-CON Congress and Conference Proceedings","volume":" 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141834075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Health and equity impacts from transportation noise 交通噪声对健康和公平的影响

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0166

Adam T. Alexander, Ahmed El-Aassar, Sierra Rose Browder

引用次数: 0

The moving goalposts - tightening design goals during a sound impact study for a New York State Article VII filing 移动的标杆--在为纽约州第七条申请进行声音影响研究期间收紧设计目标

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0169

Clinton D. Cyr

{"title":"The moving goalposts - tightening design goals during a sound impact study for a New York State Article VII filing","authors":"Clinton D. Cyr","doi":"10.3397/nc_2024_0169","DOIUrl":"https://doi.org/10.3397/nc_2024_0169","url":null,"abstract":"Article VII of the New York State Public Service Law has a review process for applications to site, construct, and operate large-scale electric or natural gas transmission facilities. A transmission facility developer proposed to rebuild 12 miles of an above-ground electric transmission\u0000 line and an adjoining substation in southern New York. In the middle of the permitting process, one reviewing entity issued a new guidance document that outlined sound study methodologies and sound level design goals for projects filing Article VII applications. This arrived after the initial\u0000 sound level impact study was finished and the Article VII application was deemed complete for the project. Epsilon Associates, Inc., the acoustical consultant, revisited the sound model and then implemented mitigation in the form of a 30-foot-tall barrier for the proposed substation upgrade\u0000 to meet the more stringent limits outlined in the guidance. Although the project was ultimately approved and constructed, additional time was spent both by the consultant and the developer which also accrued additional costs for the project attributable to this new guidance.","PeriodicalId":514177,"journal":{"name":"INTER-NOISE and NOISE-CON Congress and Conference Proceedings","volume":" 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141833766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aviation Noise in the United States: The FAA's Civil Aviation Noise Policy Review 美国的航空噪声：美国联邦航空局民用航空噪声政策审查

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0147

D. Scata Jr., Adam Scholten, Susumu Shirayama

引用次数: 0

Noise in sustainable transformation of aviation 航空业可持续转型中的噪音

INTER-NOISE and NOISE-CON Congress and Conference Proceedings Pub Date : 2024-07-14 DOI: 10.3397/nc_2024_0160

P. Ulfvengren

{"title":"Noise in sustainable transformation of aviation","authors":"P. Ulfvengren","doi":"10.3397/nc_2024_0160","DOIUrl":"https://doi.org/10.3397/nc_2024_0160","url":null,"abstract":"Rising awareness of aviation noise's health and annoyance impacts does not coincide with the industry's sustainable transition which is primarily driven by climate change. While electrification and sustainable fuels are seen as solutions, current strategies often encourage aviation\u0000 sector growth including airport and traffic expansion. National initiatives aim to accelerate aviation's sustainable transformation, aligning with increased transportation accessibility and mobility goals. There is a push for directives for electric aviation, drones, and urban air mobility\u0000 (UAM). Local health and annoyance, however, are overshadowed by the pretense of the global focus. Increased noise is anticipated with projected increases in air travel and added noise from electric and drone aircraft! This paper integrates noise and annoyance considerations into sustainable\u0000 aviation transformation. A system analysis, using soft system methodologies, reveals comprehensive socio-technical perspectives from aviation, urban planning, citizens, and regulation. Findings indicate future noise challenges and unfavorable conditions for noise reduction innovations. The\u0000 study advocates for society-wide strategies to manage aviation noise and annoyance, emphasizing recommendations like careful design, operational considerations, noise simulations, and democratic community involvement in implementation. These insights anticipate a surge in noise-related complaints\u0000 and opposition. This paper is of interest also for future aviation developers.","PeriodicalId":514177,"journal":{"name":"INTER-NOISE and NOISE-CON Congress and Conference Proceedings","volume":" 99","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141833790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0