Model-scale underwater radiated noise measurements: A study of repeatability, sensitivity to loading condition variations and correlation to full scale data

Hallander Jan

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Model-scale underwater radiated noise measurements: A study of repeatability, sensitivity to loading condition variations and correlation to full scale data

机译：模型尺度水下辐射噪声测量：对重复性的研究，加载条件变化的敏感性和与满量程数据的相关性

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摘要

In the European project AQUO, underwater radiated noise from the chemical tanker M/T Olympus was thoroughly investigated by measurements in full-scale as well as in model-scale. To investigate the repeatability of measurement and the sensitivity to loading condition variations, a new set of model-scale measurement was performed in 2019. The 2019 measurements have slightly lower cavitation volume than the 2013 measurements, but the difference is within normal variability considering water quality, propeller painting, pitch setting accuracy and set-up of the model. At the design speed, tip vortex cavitation dominates the noise with a hump around 70 Hz in full-scale. The tip vortex is under-predicted by the model-scale tests and the agreement with sea-trial data between 30 Hz and 100 Hz is not satisfactory. At the reduced velocity conditions, leading-edge vortex cavitation dominates the noise with a hump around 150 Hz in full-scale. This type of cavitation and noise seems to be better predicted by the model-scale tests, thus the agreement with the sea-trial data is good. The improved hydrophone positions gave better signal to noise ratio while the application of transfer function measurements gave better estimates in the frequency range around 100 Hz.

机译：在欧洲项目Aquo中，通过全尺度的测量以及模型规模的测量彻底调查了来自化学油罐M / T Olympus的水下辐射噪声。为了研究测量的可重复性和对装载条件变化的敏感性，2019年进行了一组新的模型测量测量。2019年测量比2013测量略低于空化量，但差异在考虑水质的正常变化范围内，螺旋桨绘画，音高设置精度和模型的设置。在设计速度下，尖端涡旋空化在满量程中占据了大约70 Hz的斑点的噪声。通过模型规模测试，尖端涡旋预测，与30Hz和100Hz之间的海检数据的协议不满意。在降低的速度条件下，前沿涡流空化在满量程中占据了大约150 Hz的凸起的噪声。这种类型的空化和噪声似乎更好地预测了模型级测试，因此与海审数据的协议是好的。改进的室内听筒位置具有更好的信噪比，而传递函数测量的应用在100Hz左右的频率范围内提供了更好的估计。

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《Ocean Engineering》 |2020年第15期|107860.1-107860.11|共11页
作者
Hallander Jan;
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SSPA Sweden AB Gothenburg Sweden;

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正文语种 eng
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关键词
Cavitation; Marine propulsion; Model scale measurements; Underwater radiated noise; Underwater acoustics;

机译：空化;海洋推进;模型尺度测量;水下辐射噪声;水下声学;

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1. Propeller underwater radiated noise: A comparison between model scale measurements in two different facilities and full scale measurements [J] . Tani G., Viviani M., Hallander J., Applied Ocean Research . 2016,第Null期

机译：螺旋桨水下辐射噪声：两种不同设施的模型比例测量与满度测量之间的比较
2. Cavitation observations, underwater radiated noise measurements and full-scale predictions of the Hydro-Spinna turbine [J] . Rosli R., Shi W., Aktas B., Ocean Engineering . 2020,第Auga15期

机译：空化观测，水下辐射噪声测量和水洗涡轮机的全规模预测
3. Underwater radiated noise measurements of a noise-reduced fisheries research vessel [J] . Alex De Robertis, Christopher D. Wilson, Scott R. Furnish, ICES Journal of Marine Science . 2013,第2期

机译：降噪渔业研究船的水下辐射噪声测量
4. Validation of underwater radiated noise predictions for a merchant vessel using full-scale measurements [C] . Frans Hendrik LAFEBER, Thomas LLOYD, Johan BOSSCHERS International Congress and Exposition on Noise Control Engineering . 2018

机译：使用满量程测量的商品船舶水下辐射噪声预测的验证
5. DETERMINATION OF EFFECTIVE RADIATIVE TRANSFER MODELS FOR ATMOSPHERIC AEROSOL HAZES FROM GROUND BASED MEASUREMENTS OF THE SCATTERING AND EXTINCTION OF SOLAR RADIATION BY THE ATMOSPHERE. CORRELATION OF MODELS WITH METEOROLOGICAL CONDITIONS. [D] . WILLSON, RICHARD CLAYTON. 1975

机译：从地面对大气的散射和消光的测量中，确定大气气雾的有效辐射传递模型。模型与气象条件的相关性。
6. Research on Ship-Radiated Noise Denoising Using Secondary Variational Mode Decomposition and Correlation Coefficient [O] . Yuxing Li, Yaan Li, Xiao Chen, 2018

机译：基于二次变分分解和相关系数的舰船辐射噪声降噪研究
7. Decision-making is the process of analyzing information about a problem situation and comparing it to a specific conclusion in order to solve a specific problematic (Yıkılmaz, 2001; Miller and Byrnes, 2001). Decision-making styles are a mechanism that is influenced by the internal and external conditions that determine the direction of the decisions of the individual, the content of the decision-making process, and the outcome of the decision-making process (Payne, Bettman and Johson, 1993; Bavol’ár and Orosová, 2015). ACT is a contemporary member of the Cognitive Behavioral Therapy family. ACT (Acceptance and commitment therapy) has both similar and different directions with Behavioral Therapies and Cognitive Therapies (Herbet and Forman, 2011; Hayes, 2004). KKT responds to classical behavioral treatments using both existential and cognitive approaches in the analysis of behavior. KKT is a science wing that tries to solve human problems with a wider perspective aimed at solving problematic human behaviors (Plumb, Stewart, Dahl and Lundgren, 2009). It is seen that there is very little research about the new approach of ACT approach when the aiming country of our country is screened and it is thought that our country will contribute to the field of psychological counseling with the work done. In the scope of the research, experimental and control groups and preliminary test, post-test and follow-up measurements of 2x3 experimental design were used. The study's study group consists of a total of 24 (12 experimental and 12 control groups) university students studying in different departments and levels, continuing their education in the academic year of 2015-2016 in Ağrı province and İbrahim Chechen University in 2015-2016 academic year. The average age of participants in the experiment and control group is 20. There were 12 participants in the experimental group, 7 female and 5 male, and 12 participants, 7 female and 5 male in the control group. Personal Information Form and Decision Making Style Scale prepared by the researcher were used in the research. In order to decide on the tests to be used in the course of analyzing the data, the scores of the participant's Decision Styles Scale pre-test, which are placed primarily in the experimental and control groups, it was analyzed whether the basic expectations of parametric tests were answered. As a result of the analysis made, the scores, skewness and kurtosis coefficients obtained from the Decision Making Styles Scale were given to the experimental and control groups. It was determined that the distribution was normal in the result of Shapiro-Wilk test, in which the skewness and kurtosis coefficients of each sub-scale were ranked between -1 and +1. Participants in the experimental and control groups; homogeneity test results for decision-style pre-test measurements indicate that the data are homogeneous. According to the results of the Mauchly Globalness Test, it has been determined that working supports the hypothesis. It was determined that there was no significant difference between the pre-test scores obtained from dependent decision-making style of experiment and control groups, but the test group showed lower mean scores at the significant level within the scores of post-test and follow-up tests. Therefore, it can be said that the ACT-oriented psychoeducation program applied to the experimental group reduces the dependent decision-making style scores from the decision style sub-dimensions and the psychoeducation program has a lasting effect. It was determined that there was no significant difference between pre-test, post-test and follow-up scores obtained from the Spontaneous-Instant Decision Style of experiment and control groups. Thus, it can be said that this situation does not cause a significant difference in the Spontaneous-Decision-Making Style scores from the decision style sub-dimensions of the ACT-oriented psychoeducation program applied to the experimental group. The ACT -oriented psychoeducation program had a decline in the intuitive decision-making styles of the individuals, but this decrease did not create significant differences. Thus, it can be said that this situation does not make a meaningful difference in the intuitive decision style scores from the decision style sub-dimensions of the KKT oriented psychoeducation program applied to the experimental group. The pre-test scores obtained from the rational decision-making style of the experimental and control groups showed that there was a difference between the post-test and the follow-up scores, but this difference was not significant. As a result of the analysis, it was determined that the test group had higher levels of rational decision style than the pre - test scores in the post test and follow - up scores, whereas the post test and follow - up test scores in the control group rational decision style showed a decrease compared to the pre - test scores. the pre - test scores. Decision-making Styles Scale Avoidant Decision Making As a result of the analysis of the mean scores of the subscale scores of pre-test, post-test and follow-up measures, the group effect was found to be insignificant. It was determined that the experimental and control groups differed significantly from the pre-test scores obtained from the avoidant decision-making style but did not show any significant change within the scores of the post-test and follow-up tests. [O] . mustafa ercengiz, ali haydar şar 2018

机译：决策是分析有关问题情况的信息并将其与特定结论进行比较的过程，以解决特定的问题（Yıkılmaz，2001; Miller和Byrnes，2001）。决策风格是一种机制，受到内部和外部条件的影响，确定个人决定的方向，决策过程的内容以及决策过程的结果（PAYNE，BETTMAN和BEDNE） Johson，1993;Bavol'ár和奥萨洛瓦，2015）。法案是认知行为治疗家庭的当代成员。行为（验收和承诺治疗）具有与行为疗法和认知疗法的类似和不同方向（Herbet和Forman，2011; Hayes，2004）。 KKT在分析行为中使用存在性和认知方法来响应古典行为治疗方法。 KKT是一个科学翼，试图解决人类问题，旨在解决有问题的人类行为（铅垂，斯图尔特，Dahl和Lundgren，2009）。有人认为，当我们国家的瞄准国家进行筛选时，有关行动方法的新方法几乎没有研究，并且认为我们的国家将为完成工作做出贡献的心理咨询领域。在研究的范围内，使用实验和对照组和初步测试，使用后测试和后续测量的2x3实验设计。该研究的研究小组包括共24名（12个实验和12个对照组）大学学生在不同的部门和水平上学习，在2015-2016学术上继续进行2015-2016的学术年度2015-2016学年年。实验和对照组参与者的平均年龄是20.实验组中有12名参与者，7名女性和5名男性，12名参与者，7名女性和5名男性。研究人员准备的个人信息表格和决策制定风格规模在研究中使用。为了决定在分析数据的过程中使用的测试，参与者的决策风格刻度预测的分数主要在实验和对照组中进行，分析了参数的基本期望吗？测试得到了回答。由于对实验和对照组给出了从决策曲调标度获得的分数，偏移和峰度分子系数。确定该分布是正常的在成熟的-WILK试验结果中，其中每亚级的偏差和刚度系数在-1到+1之间排名。实验和对照组的参与者;决策式预测测量的同质性测试结果表明数据是均匀的。根据毛毛环保试验的结果，已确定工作支持假设。据确定，从依赖决策风格的实验和对照组获得的预测分数之间没有显着差异，但测试组在测试后的分数内显示出较低的平均分数和后续的分数 - 测试。因此，可以说，应用于实验组的面向活动的心理教育程序减少了决策风格子维度的依赖决策风格分数，并且心理教育程序具有持久的效果。据确定，从实验和对照组自发决策风格获得的预测试，测试后和后续评分之间没有显着差异。因此，可以说这种情况不会导致从应用于实验组的活动导向的心理教育程序的决策风格分数的自发决策风格分数显着差异。行为的心理教育计划在个人直观的决策风格下降，但这种减少并没有产生显着的差异。因此，可以说，这种情况不会在从应用于实验组的KKT导向的心理教育程序的决策风格分数中产生有意义的决策风格分数。从实验和对照组的理性决策风格获得的预测分数显示后检验后和随访评分之间存在差异，但这种差异并不重要。由于分析，确定测试组的理性决策风格较高，而不是后测试和后续分数的预测分数，而对照组合理决策风格的后测试和后续测试分数显示出与预测试分数相比的减少。预测分数。决策款式扩展避免决策由于分析了预测试，测试后和后续措施的班次评分的平均分数，发现群体效应是微不足道的。确定实验和对照组从避免决策风格获得的预测评分中显着不同，但在测试后和后续测试的分数内没有显示出任何重大变化。
8. Comparative Acoustic Wind-Tunnel Measurements and Theoretical Correlations on Subsonic Aircraft Propellers at Full-Scale and Model-Scale [R] . Trebble, W. J. G., Williams, J., Donnelly, R. P. 1981

机译：亚音速飞机螺旋桨在全尺寸和模型尺度上的比较声学风洞测量与理论相关性

Model-scale underwater radiated noise measurements: A study of repeatability, sensitivity to loading condition variations and correlation to full scale data

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