{"title":"螺旋桨模型的边缘噪声与水动力载荷","authors":"Y. Yegorov, P. Ivanov, N. Marinich","doi":"10.24937/2542-2324-2023-2-404-50-57","DOIUrl":null,"url":null,"abstract":"Object and purpose of research. This paper discusses propeller model. The purpose of the study was to understand the effect of hydrodynamic load on the propeller upon its high-frequency non-cavitation noise radiation (edge noise). Materials and methods. Comparative analysis of Russian and foreign methods for assignment of edge noise norms. Edge noise measurements for a series of propeller models with different hydrodynamic load. Main results. The study yielded certain theoretical hints suggesting the effect of hydrodynamic load (as non-dimensional thrust coefficient Kt) upon edge noise. Experimental studies performed in this work have confirmed that this approach is valid for propeller models. Conclusion. Model tests have confirmed that edge noise depends on hydrodynamic load on the propeller (i.e. its thrust coefficient), as well as indicated tentative Kt range optimal for propeller noise mitigation.","PeriodicalId":33210,"journal":{"name":"Trudy Krylovskogo gosudarstvennogo nauchnogo tsentra","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Edge noise vs hydrodynamic load on propeller model\",\"authors\":\"Y. Yegorov, P. Ivanov, N. Marinich\",\"doi\":\"10.24937/2542-2324-2023-2-404-50-57\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Object and purpose of research. This paper discusses propeller model. The purpose of the study was to understand the effect of hydrodynamic load on the propeller upon its high-frequency non-cavitation noise radiation (edge noise). Materials and methods. Comparative analysis of Russian and foreign methods for assignment of edge noise norms. Edge noise measurements for a series of propeller models with different hydrodynamic load. Main results. The study yielded certain theoretical hints suggesting the effect of hydrodynamic load (as non-dimensional thrust coefficient Kt) upon edge noise. Experimental studies performed in this work have confirmed that this approach is valid for propeller models. Conclusion. Model tests have confirmed that edge noise depends on hydrodynamic load on the propeller (i.e. its thrust coefficient), as well as indicated tentative Kt range optimal for propeller noise mitigation.\",\"PeriodicalId\":33210,\"journal\":{\"name\":\"Trudy Krylovskogo gosudarstvennogo nauchnogo tsentra\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Trudy Krylovskogo gosudarstvennogo nauchnogo tsentra\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24937/2542-2324-2023-2-404-50-57\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trudy Krylovskogo gosudarstvennogo nauchnogo tsentra","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24937/2542-2324-2023-2-404-50-57","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Edge noise vs hydrodynamic load on propeller model
Object and purpose of research. This paper discusses propeller model. The purpose of the study was to understand the effect of hydrodynamic load on the propeller upon its high-frequency non-cavitation noise radiation (edge noise). Materials and methods. Comparative analysis of Russian and foreign methods for assignment of edge noise norms. Edge noise measurements for a series of propeller models with different hydrodynamic load. Main results. The study yielded certain theoretical hints suggesting the effect of hydrodynamic load (as non-dimensional thrust coefficient Kt) upon edge noise. Experimental studies performed in this work have confirmed that this approach is valid for propeller models. Conclusion. Model tests have confirmed that edge noise depends on hydrodynamic load on the propeller (i.e. its thrust coefficient), as well as indicated tentative Kt range optimal for propeller noise mitigation.