Numerical analysis on sound characteristics and bionic control of turbine tonal noise

Xiang, Kangshen; Chen, Weijie; Wang, Liangfeng; Qiao, Weiyang

doi:10.2514/6.2022-3673

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…In Australia, early parenting residential unit (RU) services provide short inpatient intervention programs for families who are experiencing complex early parenting challenges including difficulties with sleep and settling, feeding and nutrition, adjustment to parenting, toddler behaviour and age-appropriate routines (Karitane, 2021;Queen Elizabeth Centre, 2021;Tresillian, 2021;Tweddle, 2021).…”

Section: Backg Rou N Dmentioning

confidence: 99%

Supporting families with complex early parenting needs through a virtual residential parenting service: An investigation of outcomes, facilitators and barriers

Traynor,

Hughes,

Wood

et al. 2023

Journal of Clinical Nursing

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AimTo investigate clients' perspectives about outcomes of a telehealth residential unit (RU) program for families experiencing complex early parenting issues, and to explore facilitators and barriers to positive client outcomes.DesignQualitative study using semi‐structured interviews.MethodsSemi‐structured interviews were conducted with mothers (n = 18) admitted to a telehealth RU program. Interview transcripts were analysed using thematic analysis.ResultsMothers reported short‐term improvements in their child's presenting issues (e.g. feeding to sleep, night‐time waking, co‐sleeping), increased confidence and increased partner involvement. According to participants, program outcomes were facilitated by a positive parent–clinician relationship, the accessibility of clinicians and being able to take part in the program from their own home. Barriers included difficulties with technical equipment and connecting with the clinician overnight, and challenges with implementing strategies in the longer term.ConclusionThis nurse‐led telehealth program was viewed positively by parents and the study identified a number of areas for improvement.Implications for the profession and/or Patient careTelehealth early parenting programs provide an important way for parents to receive support with early child sleep, settling and feeding issues. Clinicians working in this area should focus on the development of positive parent–nurse relationships, enhancing communication and availability for parents during overnight periods and supporting parents to develop early parenting skills that will be applicable across the early childhood period.ImpactThe study is the first to address client experiences of a telehealth RU program. Facilitators and barriers identified will inform service improvements to the program going forward, and similar telehealth programs for families; to ensure benefits and service outcomes are maximised for parents for such a crucial service.Reporting methodThe Consolidated Criteria for Reporting Qualitative Research (COREQ) guidelines for qualitative research were followed.

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Section: Backg Rou N Dmentioning

confidence: 99%

Supporting families with complex early parenting needs through a virtual residential parenting service: An investigation of outcomes, facilitators and barriers

Traynor,

Hughes,

Wood

et al. 2023

Journal of Clinical Nursing

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“…On the one hand, different noise sources such as airfoil trailing edge noise [6] [7] [8] and fan rotor/vane interaction noise [9] [10] have been reduced with serrated leading-edge or trailing-edge; on the another hand, from the traditional sinusoidal and sawtooth type at the beginning to the combination with slits [11] [12] and porosity [13] [14] [15], many kinds of serrations have been widely studied. Considering the similar sound generation mechanism of turbomachinery, serrations for reducing turbine noise has great potential and preliminary works have been done in previous study by authors [16], however, which is far from enough.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Duct Acoustic Mode Control of Turbine Interaction Noise with Serrated Configurations

Xiang,

Chen,

Lian

et al. 2023

JAMP

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Turbine noise would be one of the dominant noise sources especially in future UHBR (Ultra High Bypass-Ratio) aeroengine, but its currently far from being studied enough. Acoustic mode is crucial for duct propagation but little study about the relation between serration and mode. Thus, taking axial single-turbine test bench NPU-Turb as object, the effect of Stator with Serrated Trailing-edge (Bionic S) and Rotor with Serrated Leading-edge (Bionic R) on duct acoustic modes of turbine turbulence interaction noise were studied in detail using DDES/AA hybrid model validated by acoustic experiment of NPU-Turb. Serval conclusions can be made here. First, for broadband noise, the effect of serrations on duct modes (increased or reduced of PWL mn ) with the increasing frequency is more prominent. Second, the changing trend of ∆PWL mn is something like Chinese character "人" with circumferential mode m and alternating with radial mode. Such distribution is more obvious at higher frequency. More theoretical and mechanistic research work needs to be carried out in depth in the future.

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Numerical analysis on sound characteristics and bionic control of turbine tonal noise

Cited by 2 publications

References 17 publications

Supporting families with complex early parenting needs through a virtual residential parenting service: An investigation of outcomes, facilitators and barriers

Supporting families with complex early parenting needs through a virtual residential parenting service: An investigation of outcomes, facilitators and barriers

Numerical Study on the Duct Acoustic Mode Control of Turbine Interaction Noise with Serrated Configurations

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