To see the other types of publications on this topic, follow the link: Radiated noise.

Journal articles on the topic 'Radiated noise'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Radiated noise.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Zhu, Zhibo, Wei Yan, Yongan Wang, Yang Zhao, Tao Zhang, and Junshuo Huang. "Noise Analysis Method of Radiated EMI based on Non-linear Principal Component Analysis." Applied Computational Electromagnetics Society 35, no. 10 (December 8, 2020): 1144–52. http://dx.doi.org/10.47037/2020.aces.j.351006.

Full text
Abstract:
Aiming at the radiated electromagnetic interference (EMI) noise of electronic equipment, a novel method of radiated EMI noise analysis based on non-linear principal component analysis (NLPCA) algorithm is proposed in this paper. In order to obtain multiple independent common-mode / differential-mode radiated sources, and to find the sources that cause the radiated noises that exceed the limit of standard, NLPCA algorithm is used to process the near-field radiated signals superimposed by multiple radiated sources. The simulation results show that NLPCA can successfully screen out the radiated E
APA, Harvard, Vancouver, ISO, and other styles
2

Skudrzyk, Eugen J. "Radiated flow noise." Journal of the Acoustical Society of America 87, S1 (May 1990): S79—S80. http://dx.doi.org/10.1121/1.2028373.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Son, Gwan-Hee, Beom-Soo Kim, Seung-Je Cho, and Young-Jun Park. "Optimization of the Housing Shape Design for Radiated Noise Reduction of an Agricultural Electric Vehicle Gearbox." Applied Sciences 10, no. 23 (November 26, 2020): 8414. http://dx.doi.org/10.3390/app10238414.

Full text
Abstract:
As the demand for agricultural electric vehicles increases, it is becoming important to conduct noise reduction in consideration of the characteristics of an electric powertrain. This study was conducted to optimize the shape design of gearbox housing for radiated noise reduction of an agricultural electric vehicle gearbox. The noise and vibration of the gearbox were measured considering the noise characteristics of the electric vehicle gearbox, which radiates high-frequency pure tone noise. The main noise source radiated by the structural vibration of the gearbox housing was identified and co
APA, Harvard, Vancouver, ISO, and other styles
4

Zhang, Qing Qing, Yi Qi Zhou, and Liang Liang Fan. "Radiated Noise Source Localization of Hydraulic Excavator Based on Wavelet Packet Analysis." Applied Mechanics and Materials 415 (September 2013): 409–13. http://dx.doi.org/10.4028/www.scientific.net/amm.415.409.

Full text
Abstract:
Collect a hydraulic excavators radiated noise ten meters away under set conditions, and also the relevant noises near the excavator. Analyze noise signals with wavelet packet to get the main band of energy distribution. Then calculate the two signals correlation coefficient, which identifies the muffler exhaust noise and inlet noise as the main source for right rear radiated noise.
APA, Harvard, Vancouver, ISO, and other styles
5

Yu, Changshuai, Zhong Luo, Haitao Luo, Siwei Guo, Guangming Liu, and Zhenxin Li. "Noise simulation and low noise design of skinned panel structure of scientific experiment rack." MATEC Web of Conferences 336 (2021): 01002. http://dx.doi.org/10.1051/matecconf/202133601002.

Full text
Abstract:
The noise of the scientific experiment rack radiates into the space station through the skinned structure, which directly affects the safety and health of astronauts in orbit for a long time, so it is necessary to carry out low-noise design. Firstly, the finite element model of the panel structure is established, and the correctness of the model is verified by modal test. Secondly, select a point as the vibration excitation point on the finite element model of the plate structure to simulate the vibration input of the excitation source, obtain its vibration response through the modal superposi
APA, Harvard, Vancouver, ISO, and other styles
6

Li, Zhaoxi, Yaan Li, and Kai Zhang. "A Feature Extraction Method of Ship-Radiated Noise Based on Fluctuation-Based Dispersion Entropy and Intrinsic Time-Scale Decomposition." Entropy 21, no. 7 (July 15, 2019): 693. http://dx.doi.org/10.3390/e21070693.

Full text
Abstract:
To improve the feature extraction of ship-radiated noise in a complex ocean environment, fluctuation-based dispersion entropy is used to extract the features of ten types of ship-radiated noise. Since fluctuation-based dispersion entropy only analyzes the ship-radiated noise signal in single scale and it cannot distinguish different types of ship-radiated noise effectively, a new method of ship-radiated noise feature extraction is proposed based on fluctuation-based dispersion entropy (FDispEn) and intrinsic time-scale decomposition (ITD). Firstly, ten types of ship-radiated noise signals are
APA, Harvard, Vancouver, ISO, and other styles
7

Chen, Zhe, Yaan Li, Renjie Cao, Wasiq Ali, Jing Yu, and Hongtao Liang. "A New Feature Extraction Method for Ship-Radiated Noise Based on Improved CEEMDAN, Normalized Mutual Information and Multiscale Improved Permutation Entropy." Entropy 21, no. 6 (June 25, 2019): 624. http://dx.doi.org/10.3390/e21060624.

Full text
Abstract:
Extracting useful features from ship-radiated noise can improve the performance of passive sonar. The entropy feature is an important supplement to existing technologies for ship classification. However, the existing entropy feature extraction methods for ship-radiated noise are less reliable under noisy conditions because they lack noise reduction procedures or are single-scale based. In order to simultaneously solve these problems, a new feature extraction method is proposed based on improved complementary ensemble empirical mode decomposition with adaptive noise (ICEEMDAN), normalized mutua
APA, Harvard, Vancouver, ISO, and other styles
8

Mohd Haris, Siti Nur Aishah, Mohamed Sukri Mat Ali, Sheikh Ahmad Zaki Shaikh Salim, Sallehuddin Muhamad, and Muhammad Iyas Mahzan. "Numerical Simulation of Noise Radiated from a Blunt Trailing Edge." Applied Mechanics and Materials 629 (October 2014): 3–8. http://dx.doi.org/10.4028/www.scientific.net/amm.629.3.

Full text
Abstract:
The Lighthill acoustic analogy is applied to estimate the noise radiation from flow over a blunt trailing edge. The blunt trailing edge is an effective vortex generator. Periodic vortex shedding near the trailing edge induces fluctuating lift that radiates a strong Aeolian tone. The frequency of the Aeolian tone is similar to that of the vortex shedding. A 50.1 dB of Aeolian tone level is radiated from this blunt trailing edge.
APA, Harvard, Vancouver, ISO, and other styles
9

Dahl, Milo D., and Philip J. Morris. "Supersonic Jet Noise Reductions Predicted With Increased Jet Spreading Rate." Journal of Fluids Engineering 120, no. 3 (September 1, 1998): 471–76. http://dx.doi.org/10.1115/1.2820686.

Full text
Abstract:
In this paper, predictions are made of noise radiation from single, supersonic, axisymmetric jets. We examine the effects of changes in operating conditions and the effects of simulated enhanced mixing that would increase the spreading rate of the jet shear layer on radiated noise levels. The radiated noise in the downstream direction is dominated by mixing noise and, at higher speeds, it is well described by the instability wave noise radiation model. Further analysis with the model shows a relationship between changes in spreading rate due to enhanced mixing and changes in the far field radi
APA, Harvard, Vancouver, ISO, and other styles
10

Lu, Ding Ding, and Lin He. "Real-Time Calculation of Noise Radiated by Ship Structure via Machinery Exciting Force Estimation." Applied Mechanics and Materials 226-228 (November 2012): 87–91. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.87.

Full text
Abstract:
A method which combines the estimation of machinery exciting force and mechano-acoustical transfer function is proposed in this paper to predict real-time radiated noise by ship structure. The measurement methods of mechano-acoustical and mechano-vibrational transfer functions which are used in radiated noise calculation are described. The feasibility and accuracy are verified by an underwater model experiment. Measurement and calculation results are consistent. The average error of the exciting force estimation is about 2dB, and the average error of radiated noise pressure calculation is abou
APA, Harvard, Vancouver, ISO, and other styles
11

Zhu, Zhibo, Wei Yan, Yang Zhao, Xingfa Liu, and Tao Zhang. "Separation of Radiated EMI Noise based on Joint Approximate Diagonalization Algorithm." Applied Computational Electromagnetics Society 36, no. 1 (February 27, 2021): 41–47. http://dx.doi.org/10.47037/2020.aces.j.360106.

Full text
Abstract:
Power electronic devices and electrical equipment produce a large quantity of radiated electromagnetic interference (EMI) in the working process. Electromagnetic field analysis method of the near-field and far-field of the antenna can be employed to separate the radiated interference noises. However, the method has low separation accuracy and requires a lot of time. A novel method based on joint approximate diagonalization algorithm (JADA) to separate the radiated EMI noise is proposed in this paper. Compared with the traditional independent component algorithm method, the accuracy is improved
APA, Harvard, Vancouver, ISO, and other styles
12

Hirai, Yukino, Toshio Tsuchiya, and Etsuro Shimizu. "Underwater Noise Radiated from Ships." Marine Engineering 54, no. 4 (July 1, 2019): 593–97. http://dx.doi.org/10.5988/jime.54.593.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Wales, Stephen C. "Ship‐radiated noise‐field characterization." Journal of the Acoustical Society of America 101, no. 5 (May 1997): 3197. http://dx.doi.org/10.1121/1.419342.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Hinich, Melvin J., Davide Marandino, and Edmund J. Sullivan. "Bispectrum of ship‐radiated noise." Journal of the Acoustical Society of America 85, S1 (May 1989): S127—S128. http://dx.doi.org/10.1121/1.2026718.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Hinich, Melvin J., Davide Marandino, and Edmund J. Sullivan. "Bispectrum of ship‐radiated noise." Journal of the Acoustical Society of America 85, no. 4 (April 1989): 1512–17. http://dx.doi.org/10.1121/1.397352.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Dong, Ying Hua, Mei Yin Liu, and Lei Cao. "EMI Noise Testing and Diagnosis for PV Inverter." Advanced Materials Research 805-806 (September 2013): 31–35. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.31.

Full text
Abstract:
In this paper, a new method is proposed to test the conducted and radiated electromagnetic interference (EMI) noise of photovoltaic invert based on analysis the internal structure and measuring principle of artificial mains network, meanwhile, the power line radiated EMI noise of photovoltaic can also be estimated by CM noise current using current probe and CM noise extraction network. The experiment result show that the conducted EMI noise and radiated EMI noise of photovoltaic inverter can be test more reasonable by this method.
APA, Harvard, Vancouver, ISO, and other styles
17

Zou, Chao, Yimin Wang, and Ziyu Tao. "Train-Induced Building Vibration and Radiated Noise by Considering Soil Properties." Sustainability 12, no. 3 (January 27, 2020): 937. http://dx.doi.org/10.3390/su12030937.

Full text
Abstract:
Constructing buildings above subway tracks exploits urban-area space intensively by adopting the three-dimensional overlapping development mode, which is one of the important measures for solving the contradictions among urban population increase, land resource shortage, and environmental protection. However, the vibration generated by the frequent train operations is transmitted to the upper buildings through the track structure and ground soil, which can cause structural vibrations and radiated noise and bring physical and mental side effects to occupants within the buildings. Subway project
APA, Harvard, Vancouver, ISO, and other styles
18

Si, Wang, Yuan, Huang, Lin, and Wang. "Numerical and Experimental Investigation on Radiated Noise Characteristics of the Multistage Centrifugal Pump." Processes 7, no. 11 (November 2, 2019): 793. http://dx.doi.org/10.3390/pr7110793.

Full text
Abstract:
The radiated noise of the centrifugal pump acts as a disturbance in many applications. The radiated noise is closely related to the hydraulic design. The hydraulic parameters in the multistage pump are complex and the flow interaction among different stages is very strong, which in turn causes vibration and noise problems because of the strong hydraulic excitation. Hence, the mechanism of radiated noise and its relationship with hydraulics must be studied clearly. In order to find the regular pattern of the radiated noise at different operational conditions, a hybrid numerical method was propo
APA, Harvard, Vancouver, ISO, and other styles
19

Zhan, Shuai. "Study on Feature Extraction of Ship Radiated Noise Based on Cepstrum and Anti-Noise Property." Advanced Materials Research 981 (July 2014): 786–89. http://dx.doi.org/10.4028/www.scientific.net/amr.981.786.

Full text
Abstract:
Line spectrum is one kind of important feature information of the ship radiated noise, which provides a strong basis for the ship detection and identification. Due to the complexity of marine environment and the special nature of underwater acoustic channel,it is difficult to obtain ship radiated noise’ signals from the complex background noise. Under this situation, this paper proposed the cepstrum as the extraction method of obtaining feature information of the ship radiated noise, and the robust to noise performance was analyzed and compared. The analysis’ result shows that the method is si
APA, Harvard, Vancouver, ISO, and other styles
20

Ju, Yang, Zhe Zhang, Xin Yong Wang, and Hai Sheng Xu. "Underwater Radiated-Noise Simulation Control Model Based on Propeller Influencing." Applied Mechanics and Materials 651-653 (September 2014): 940–43. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.940.

Full text
Abstract:
Underwater target radiated-noise of time domain is significant important in underwater defense and security. Its simulation model based on propeller influencing is considered in this paper. Linear difference equation representing relationship between underwater target radiated-noise of time domain and propeller induced noise is fitted from the data. Dynamical programming is employed to investigate the control of the target radiated-noise. Experimental results show the efficiency of our model and the control methods.
APA, Harvard, Vancouver, ISO, and other styles
21

Yuan, Fei, Xiaoquan Ke, and En Cheng. "Joint Representation and Recognition for Ship-Radiated Noise Based on Multimodal Deep Learning." Journal of Marine Science and Engineering 7, no. 11 (October 27, 2019): 380. http://dx.doi.org/10.3390/jmse7110380.

Full text
Abstract:
Ship recognition based on ship-radiated noise is one of the most important and challenging subjects in underwater acoustic signal processing. The recognition methods for ship-radiated noise recognition include traditional methods and deep learning (DL) methods. Developing from the DL methods and inspired by audio–video speech recognition (AVSR), the paper further introduces multimodal deep learning (multimodal-DL) methods for the recognition of ship-radiated noise. In this paper, ship-radiated noise (acoustics modality) and visual observation of the ships (visual modality) are two different mo
APA, Harvard, Vancouver, ISO, and other styles
22

Teng, Yue Hui, and Ping Xiang Liu. "Research on Underwater Targets Recognition Based on Decision-Makings Fusion." Advanced Materials Research 546-547 (July 2012): 458–63. http://dx.doi.org/10.4028/www.scientific.net/amr.546-547.458.

Full text
Abstract:
A current problem in the development of passive sonar is the classification of different noise sources. The existing Automatic Underwater Target Recognition Technique (AURT) is mainly based on spectrum analysis of radiated noise in passive sonar. However, with the development of noise control techniques, the radiated noise of underwater targets have been reduced enormously in the past few years, even the working states of the same target also weaken the stationarity of spectrum features of its radiated noise. The objective of this paper concentrates on the AURT with multi-method analysis on ra
APA, Harvard, Vancouver, ISO, and other styles
23

Giordano, J. A., K. A. Cunefare, and G. H. Koopmann. "An Experiment on Optimization of Active Noise Control on a Three-Dimensional Extended Radiator." Journal of Vibration and Acoustics 115, no. 1 (January 1, 1993): 53–58. http://dx.doi.org/10.1115/1.2930314.

Full text
Abstract:
In this experiment, a 10.6 dB reduction in the total radiated sound power for an extended radiator was achieved via active control through optimization of active sources. An acoustic boundary element program was used to determine the magnitude and phase of the active sources which minimized the total radiated sound power. This paper details the experimental verification of the numerically predicted active source strengths using a box-shaped acoustic radiator. The top and bottom of the radiator were thin steel plates which were driven in one of their structural modes by an electromagnetic shake
APA, Harvard, Vancouver, ISO, and other styles
24

Song, Leiming, Hao Chen, and Baochuan Li. "Aerodynamic Noise Separation of an EMU Trailer Bogie Area Using Train Operation Tests." Shock and Vibration 2018 (December 2, 2018): 1–10. http://dx.doi.org/10.1155/2018/7941980.

Full text
Abstract:
The operation transfer path analysis (OTPA) technique was used to measure the vibration and noise transfer coefficient functions of wheel-rail noise and radiated noise from an electric multiple unit (EMU) train (high-speed train in China) trailer bogie structure to the central area of the trailer bogie for a train running at speeds of 0–5 km/h. By applying these transfer coefficient functions to the noise analysis of high-speed train operation, the contributions of wheel-rail noise and frame-radiated noise to the noise of the bogie area at high speeds are obtained, and the aerodynamic noise is
APA, Harvard, Vancouver, ISO, and other styles
25

Rose, Michael T., B. Dagan Pielstick, Zach T. Jones, Scott D. Sommerfeldt, Kent L. Gee, Scott L. Thomson, Department of Physics and Astronomy, Brigham, and Department of Physics and Astronomy, Brigham. "Case study: Noise reduction of a vacuum-assisted toilet." Noise Control Engineering Journal 68, no. 4 (July 1, 2020): 294–302. http://dx.doi.org/10.3397/1/376825.

Full text
Abstract:
Flushing a vacuum-assisted toilet generates noise levels that can be disturbing both to users and those nearby. Peak radiated noise levels correlate with the time when the valve opens and closes, while the noise levels when the valve is com- pletely open are also relatively high. Significant noise ranges between 300 Hz and 3000 Hz. It was hypothesized that increasing the in-tube distance between the flush valve and the bowl in addition to increasing the bend radius of the tube would reduce radiated noise levels. These modifications resulted in a reduction of about 14 dB in the radiated noise d
APA, Harvard, Vancouver, ISO, and other styles
26

Chen, Hui, Wen Bing Tang, Zhen Guan Cao, and Hua Ping Zhou. "Radiation Disturbance of Variable Frequency Winch Drive System in Underground Coal Mines." Applied Mechanics and Materials 441 (December 2013): 552–56. http://dx.doi.org/10.4028/www.scientific.net/amm.441.552.

Full text
Abstract:
In order to study the effect of variable frequency drive system upon electromagnetic radiation environment in underground coal mines, the mechanism of electromagnetic radiation from the variable frequency speed regulation system has been analyzed deeply, and the radiated electromagnetic noise from the variable frequency winch system with rated voltage of 1140V in underground coal mines has been measured. The measuring results show that the radiated emission from variable frequency drive system has certain effects on electromagnetic radiation environment in underground coal mines. The maximum r
APA, Harvard, Vancouver, ISO, and other styles
27

Blanchet, Denis, Willem Van Hal, and Arnaud Caillet. "Effect of Beading on Radiated Noise." SAE International Journal of Passenger Cars - Mechanical Systems 3, no. 1 (June 9, 2010): 868–74. http://dx.doi.org/10.4271/2010-01-1407.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Xia, Chang Gao, and Zhen Yu Zhang. "Simulation Analysis on Engine Radiated Noise." Advanced Materials Research 421 (December 2011): 354–59. http://dx.doi.org/10.4028/www.scientific.net/amr.421.354.

Full text
Abstract:
In this paper, in order to analyze and predict surface radiated noise, an engine with 6 cylinders is studied by advanced methods. The loads that the engine block is subjected and the modal participation factors can be obtained through multi-body dynamics calculation; by the finite element method, structural modes of the engine can be gotten; by the acoustic boundary element method and the modal acoustic transfer vector method, the acoustic responses on field points can be obtained. According to the simulation results, the acoustic power and the acoustic pressure distributions on field points a
APA, Harvard, Vancouver, ISO, and other styles
29

Wales, Stephen C., and Richard M. Heitmeyer. "Merchant ship‐radiated noise source levels." Journal of the Acoustical Society of America 129, no. 4 (April 2011): 2366. http://dx.doi.org/10.1121/1.3587657.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Kannan, Venkatesh. "FUEL RAIL FOR ATTENUATING RADIATED NOISE." Journal of the Acoustical Society of America 133, no. 3 (2013): 1847. http://dx.doi.org/10.1121/1.4795056.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

de Jong, Christ A. F., Leonard J. van Lier, and Johan Bosschers. "Surface ship underwater radiated flow noise." Journal of the Acoustical Society of America 116, no. 4 (October 2004): 2568. http://dx.doi.org/10.1121/1.1853012.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Ni, E.-J., D. S. Snyder, G. F. Walton, N. E. Mallard, G. E. Barron, J. T. Browell, and B. N. Aljundi. "Radiated Noise from Tire/Wheel Vibration." Tire Science and Technology 25, no. 1 (January 1, 1997): 29–42. http://dx.doi.org/10.2346/1.2137528.

Full text
Abstract:
Abstract As a general trend, vehicle sound quality has significantly improved in recent years. This is primarily due to improved body structure and powertrain design. As demand for better vehicle sound quality increases, it is important to study all possible noise sources contributing to noise, vibration, and harshness (NVH). Tire vibration has long been recognized as a source of airborne noise. Some effects of wheel design on tire noise have also been well understood for sometime. But the dynamic interaction between tire and wheel designs and its effect on vehicle NVH, although frequently obs
APA, Harvard, Vancouver, ISO, and other styles
33

Garcia, Patrick, Dirk Wiemeler, and Jan-Friedrich Brand. "Surface radiated noise of exhaust systems." MTZ worldwide 67, no. 11 (November 2006): 11–13. http://dx.doi.org/10.1007/bf03227883.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Lilley, Geoffrey M. "The radiated noise from isotropic turbulence." Theoretical and Computational Fluid Dynamics 6, no. 5-6 (October 1994): 281–301. http://dx.doi.org/10.1007/bf00311842.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Yu, Hu, Hong Hou, and Liang Sun. "CAE Technology Applied to Range Hood’s Noise Control and Optimization Design." Advanced Materials Research 338 (September 2011): 543–46. http://dx.doi.org/10.4028/www.scientific.net/amr.338.543.

Full text
Abstract:
In this study we use the CAE technology to compute and reduce the radiated noise of range hood. First, a finite element model of a typical range hood is created using Hypermesh. Then, the surface particle velocity is carried out in Nastran, and the radiated noise is calculated by Sysnoise. Finally, the DOE-based structural optimization is preformed using iSIGHT-FD, in which the sound pressure level at four sensitive points and the radiated sound power are selected as the objective function and the thickness of four panels are adopted as design variable. In addition, the weight of the range hoo
APA, Harvard, Vancouver, ISO, and other styles
36

Yan, Jiaquan, Haixin Sun, En Cheng, Xiaoyan Kuai, and Xiaoliang Zhang. "Ship Radiated Noise Recognition Using Resonance-Based Sparse Signal Decomposition." Shock and Vibration 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/6930605.

Full text
Abstract:
Under the complex oceanic environment, robust and effective feature extraction is the key issue of ship radiated noise recognition. Since traditional feature extraction methods are susceptible to the inevitable environmental noise, the type of vessels, and the speed of ships, the recognition accuracy will degrade significantly. Hence, we propose a robust time-frequency analysis method which combines resonance-based sparse signal decomposition (RSSD) and Hilbert marginal spectrum (HMS) analysis. First, the observed signals are decomposed into high resonance component, low resonance component, a
APA, Harvard, Vancouver, ISO, and other styles
37

Hall, H. R., W. Brent Ferren, and R. J. Bernhard. "Active Control of Radiated Sound from Ducts." Journal of Vibration and Acoustics 114, no. 3 (July 1, 1992): 338–46. http://dx.doi.org/10.1115/1.2930267.

Full text
Abstract:
The noise radiated by duct and pipe systems is modeled in the laboratory using a circular duct driven by a speaker at one end. Active control is achieved using a control speaker located adjacent to the open end of the duct. The objective of the investigation was to minimize the total sound power radiated by the duct and a single secondary source. However, the adaptive algorithm used by the controller for this investigation seeks to cancel the acoustic pressure only at a single location; that is, the location of the “error” microphone. Analytical studies predict that in order for the total soun
APA, Harvard, Vancouver, ISO, and other styles
38

Hu, Cheng Jun, Yuan Zheng, and Han Bo Zhao. "Periodic Signal Detection in Ship Radiated Noise." Advanced Materials Research 1049-1050 (October 2014): 1577–80. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.1577.

Full text
Abstract:
Periodic signal is abundant in ship radiated noise. Its detection is an important step towards active control of ship’s acoustic signature. Based on power spectrum analysis and DEMON analysis, an approach to detect line spectrum and modulation spectrum of ship radiated noise is proposed. Periodogram method is used for power spectrum estimation. The separation of line and continuous spectrum, false positive removal, and line spectrum merging are conducted to improve the quality of detected characteristic line spectrum. Via DEMON analysis, steady physical characteristics including propeller’s ro
APA, Harvard, Vancouver, ISO, and other styles
39

De Robertis, Alex, Christopher D. Wilson, Scott R. Furnish, and Peter H. Dahl. "Underwater radiated noise measurements of a noise-reduced fisheries research vessel." ICES Journal of Marine Science 70, no. 2 (November 21, 2012): 480–84. http://dx.doi.org/10.1093/icesjms/fss172.

Full text
Abstract:
Abstract De Robertis, A., Wilson, C. D., Furnish, S. R., and Dahl, P. H. 2013. Underwater radiated noise measurements of a noise-reduced fisheries research vessel. – ICES Journal of Marine Science, 70: 480–484. Vessel-radiated noise is traditionally measured at naval acoustic ranges, but lower-cost options are desirable for routine monitoring of research vessels. Measurements of a noise-reduced research vessel made at a naval noise range are compared to those made using an experimental mooring equipped with commercially available instrumentation. The measurements from the mooring were precise
APA, Harvard, Vancouver, ISO, and other styles
40

Wang, Liang, and Xiao Sun. "The Engine Oil Sump Radiated Noise Optimization Design." Applied Mechanics and Materials 494-495 (February 2014): 82–85. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.82.

Full text
Abstract:
This paper introduces the meaning of reducing the radiated noise of oil sump. By using Hyperworks and Nastran, the modal analysis and optimization design of engine oil sump are finished. This paper aims at avoiding the actual measured inherent frequency by increasing modal frequency to reduce the radiated noise. At the same time, the optimum quality allocation of oil sump can be achieved. The result of optimization design can be proved through the test.
APA, Harvard, Vancouver, ISO, and other styles
41

Lan, Hua Lin, Yun Fei Lv, and Jun Jie Shi. "Measurement for the Ship Noise with a Single Vector Sensor." Applied Mechanics and Materials 303-306 (February 2013): 448–52. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.448.

Full text
Abstract:
To suppress the interference of radiated noise from the other ship and improve the measurement efficiency, a new method of the measurement for the ship noise with a single vector sensor was proposed. The ship at different direction were classified via the DOA estimation with a single vector sensor, then the radiated noise from the special ship was accumulated. The experiment of measuring the ship noise with a single vector sensor was conducted in the Yellow sea of China in the summer of 2010. The results showed the validity of the given method.
APA, Harvard, Vancouver, ISO, and other styles
42

Liu, Hai, Junhong Zhang, Peng Guo, Fengrong Bi, Hanzhengnan Yu, and Guangjian Ni. "Sound quality prediction for engine-radiated noise." Mechanical Systems and Signal Processing 56-57 (May 2015): 277–87. http://dx.doi.org/10.1016/j.ymssp.2014.10.005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Umeda, Yoshikuni, and Ryuji Ishii. "Reduction of noise radiated from supersonic jets." Journal of the Acoustical Society of America 100, no. 4 (October 1996): 2566. http://dx.doi.org/10.1121/1.417383.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

MATSUOKA, Hiroki, Kazuki HOSOKAI, Hiromitsu HAMAKAWA, and Eru KURIHARA. "116 Aerodynamic Noise radiated from Wells Turbine." Proceedings of Conference of Kyushu Branch 2014.67 (2014): _116–1_—_116–2_. http://dx.doi.org/10.1299/jsmekyushu.2014.67._116-1_.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Prokopovich, V. V., and A. V. Shafranyuk. "Underwater radiated noise model of marine object." Journal of Physics: Conference Series 1536 (May 2020): 012005. http://dx.doi.org/10.1088/1742-6596/1536/1/012005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

IIDA, Akiyoshi, Hiroyuki TANIDA, and Akisato MIZUNO. "Aerodynamic noise radiated from a rotating cylinder." Proceedings of the JSME annual meeting 2004.7 (2004): 53–54. http://dx.doi.org/10.1299/jsmemecjo.2004.7.0_53.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Clark, Joseph, and Gerald Tarasek. "Radiated noise measurements with vector sensor arrays." Journal of the Acoustical Society of America 119, no. 5 (May 2006): 3444. http://dx.doi.org/10.1121/1.4808867.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Cole, S. "Minimizing radiated noise in magnetically sensitive applications." IEEE Instrumentation & Measurement Magazine 16, no. 3 (June 2013): 12–16. http://dx.doi.org/10.1109/mim.2013.6521128.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Yang, Su, Zhishun Li, and Xinlong Wang. "Vessel radiated noise recognition with fractal features." Electronics Letters 36, no. 10 (2000): 923. http://dx.doi.org/10.1049/el:20000651.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Spence, Jesse. "Reducing underwater radiated noise from gravel islands." Journal of the Acoustical Society of America 119, no. 5 (May 2006): 3229. http://dx.doi.org/10.1121/1.4785960.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!