Experimental investigation into vibration control of stern structure excited by propeller forces

编号	位置	方向	物理量	灵敏度/（mV·g⁻¹）
A1	齿轮箱	X/Y/Z	加速度	100
A2	推力轴承	X/Y/Z	加速度	100
A3	Ⅰ号中间轴承	X/Y/Z	加速度	100
A4	Ⅱ号中间轴承	X/Y/Z	加速度	100
A5	艉管轴承	X/Y/Z	加速度	100
A6	艉轴承	X/Y/Z	加速度	100

Table 2. Vibration levels of each measurement point under different working conditions

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Table 2. Vibration levels of each measurement point under different working conditions

转速/(r·min⁻¹)	方向	振级/dB
转速/(r·min⁻¹)	方向	A1	A2	A3	A4	A5	A6
	X	92.6	99.1	102.5	99.2	99.5	103.2
0	Y	94.9	96.3	99.9	100.7	104.5	104.4
	Z	93.2	97.3	102.7	100.0	99.5	102.3
	X	94.9	97.6	103.0	100.8	100.1	105.2
300	Y	99.3	96.1	100.9	101.1	105.6	105.2
	Z	98.1	97.9	103.6	101.1	100.8	103.4

Table 3. Sensitivity of measurement points at different vibration control in the stern structure
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Table 3. Sensitivity of measurement points at different vibration control in the stern structure
位置数量方向物理量灵敏度
艉支架连接板 8 垂向加速度 100 mV/g
艉部壳体 8 法向加速度 100 mV/g
激振器上方 1 垂向力 10 mV/N

Table 4. Vibration levels before/after controling
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Table 4. Vibration levels before/after controling
工况艉轴架连接板振级/dB 艉部壳体振级/dB
无控制 98.9 92.7
隔振器 95.7 88.7
隔振器+阻振质量 95.8 87.5
隔振器+阻振质量+阻尼层 90.2 86.6

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Shengpeng JIANG, Zixiang HUANG, Di WU, Zhizhong LIU, Zhiyi ZHANG. Experimental investigation into vibration control of stern structure excited by propeller forces[J]. Chinese Journal of Ship Research, 2021, 16(3): 157

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Paper Information

Category: Ship Structure and Fittings

Received: Apr. 29, 2020

Accepted: --

Published Online: Mar. 27, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.01938

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Arrangement of sensors in the test of vibration transmission

Table 1. Arrangement of sensors in the test of vibration transmission

Table 2. Vibration levels of each measurement point under different working conditions

Table 2. Vibration levels of each measurement point under different working conditions

Table 3. Sensitivity of measurement points at different vibration control in the stern structure

Table 3. Sensitivity of measurement points at different vibration control in the stern structure

Table 4. Vibration levels before/after controling

Table 4. Vibration levels before/after controling