{"title":"用于水下航行器宽带振动控制的新型环形压电隔振器:概念、分析与验证","authors":"Ziyu Shen , Liang Wang , Rui Qi , Xiaoming Geng , Haoren Feng , Chunsheng Zhao","doi":"10.1016/j.ymssp.2025.113344","DOIUrl":null,"url":null,"abstract":"<div><div>Underwater vehicles (UUVs) are essential for marine defenses, while noise and vibration disturbances frequently jeopardize their stability and stealth. To meet the high-precision, high-efficiency, wideband and multidirectional vibration control requirements in the small propulsion compartment of UUVs, a novel ring active vibration isolator with frequency-segmented gain control is proposed in this study. Firstly, the structure of the vibration isolator based on piezoelectric actuators is designed to meet radial bearing and vibration isolation simultaneously. Then, a mathematical model of the ring active vibration isolator including the piezoelectric actuator dynamics is developed, and the segmented active control method (focusing on segmented control gain) for wideband disturbances is proposed to overcome the difficulties of effective wideband control. Finally, the prototype is manufactured and assembled to verify the efficiency of the ring piezoelectric vibration isolator in controlling arbitrary radial disturbances, and the wideband vibration control experiments are used to explore the feasibility of the segmented vibration control method. The results show that, for unidirectional disturbances (single radial direction), the greatest amplitude attenuation reaches 91 % at resonant frequencies, and the control performance is also excellent in non-resonant frequencies with residual disturbance as low as 0.03 g. Wideband disturbances coupled in the rotational direction (combined <em>x</em> and <em>y</em> radial directions) are effectively controlled, achieving 88 % (<em>x</em>) and 48 % (<em>y</em>) reductions. This study on the ring piezoelectric vibration isolator with the segmented vibration control method can be used as a reference for wideband vibration control of UUVs.</div></div>","PeriodicalId":51124,"journal":{"name":"Mechanical Systems and Signal Processing","volume":"239 ","pages":"Article 113344"},"PeriodicalIF":8.9000,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel ring piezoelectric vibration isolator for wideband vibration control of underwater vehicles: Concept, analysis and verification\",\"authors\":\"Ziyu Shen , Liang Wang , Rui Qi , Xiaoming Geng , Haoren Feng , Chunsheng Zhao\",\"doi\":\"10.1016/j.ymssp.2025.113344\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Underwater vehicles (UUVs) are essential for marine defenses, while noise and vibration disturbances frequently jeopardize their stability and stealth. To meet the high-precision, high-efficiency, wideband and multidirectional vibration control requirements in the small propulsion compartment of UUVs, a novel ring active vibration isolator with frequency-segmented gain control is proposed in this study. Firstly, the structure of the vibration isolator based on piezoelectric actuators is designed to meet radial bearing and vibration isolation simultaneously. Then, a mathematical model of the ring active vibration isolator including the piezoelectric actuator dynamics is developed, and the segmented active control method (focusing on segmented control gain) for wideband disturbances is proposed to overcome the difficulties of effective wideband control. Finally, the prototype is manufactured and assembled to verify the efficiency of the ring piezoelectric vibration isolator in controlling arbitrary radial disturbances, and the wideband vibration control experiments are used to explore the feasibility of the segmented vibration control method. The results show that, for unidirectional disturbances (single radial direction), the greatest amplitude attenuation reaches 91 % at resonant frequencies, and the control performance is also excellent in non-resonant frequencies with residual disturbance as low as 0.03 g. Wideband disturbances coupled in the rotational direction (combined <em>x</em> and <em>y</em> radial directions) are effectively controlled, achieving 88 % (<em>x</em>) and 48 % (<em>y</em>) reductions. This study on the ring piezoelectric vibration isolator with the segmented vibration control method can be used as a reference for wideband vibration control of UUVs.</div></div>\",\"PeriodicalId\":51124,\"journal\":{\"name\":\"Mechanical Systems and Signal Processing\",\"volume\":\"239 \",\"pages\":\"Article 113344\"},\"PeriodicalIF\":8.9000,\"publicationDate\":\"2025-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Mechanical Systems and Signal Processing\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0888327025010453\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanical Systems and Signal Processing","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0888327025010453","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
A novel ring piezoelectric vibration isolator for wideband vibration control of underwater vehicles: Concept, analysis and verification
Underwater vehicles (UUVs) are essential for marine defenses, while noise and vibration disturbances frequently jeopardize their stability and stealth. To meet the high-precision, high-efficiency, wideband and multidirectional vibration control requirements in the small propulsion compartment of UUVs, a novel ring active vibration isolator with frequency-segmented gain control is proposed in this study. Firstly, the structure of the vibration isolator based on piezoelectric actuators is designed to meet radial bearing and vibration isolation simultaneously. Then, a mathematical model of the ring active vibration isolator including the piezoelectric actuator dynamics is developed, and the segmented active control method (focusing on segmented control gain) for wideband disturbances is proposed to overcome the difficulties of effective wideband control. Finally, the prototype is manufactured and assembled to verify the efficiency of the ring piezoelectric vibration isolator in controlling arbitrary radial disturbances, and the wideband vibration control experiments are used to explore the feasibility of the segmented vibration control method. The results show that, for unidirectional disturbances (single radial direction), the greatest amplitude attenuation reaches 91 % at resonant frequencies, and the control performance is also excellent in non-resonant frequencies with residual disturbance as low as 0.03 g. Wideband disturbances coupled in the rotational direction (combined x and y radial directions) are effectively controlled, achieving 88 % (x) and 48 % (y) reductions. This study on the ring piezoelectric vibration isolator with the segmented vibration control method can be used as a reference for wideband vibration control of UUVs.
期刊介绍:
Journal Name: Mechanical Systems and Signal Processing (MSSP)
Interdisciplinary Focus:
Mechanical, Aerospace, and Civil Engineering
Purpose:Reporting scientific advancements of the highest quality
Arising from new techniques in sensing, instrumentation, signal processing, modelling, and control of dynamic systems