本文選題：風(fēng)向風(fēng)速 + 姿態(tài)信息��； 參考：《大連海事大學(xué)》2014年碩士論文

【摘要】：風(fēng)翼助航船舶需要根據(jù)風(fēng)向風(fēng)速調(diào)整風(fēng)翼的迎風(fēng)角,以達(dá)到最大的風(fēng)能利用率,風(fēng)翼助航船舶對(duì)風(fēng)向風(fēng)速的測(cè)量精度要求較高。目前,船舶上使用的風(fēng)向風(fēng)速儀一般是對(duì)于氣象因素的測(cè)量,風(fēng)向風(fēng)速測(cè)量精度要求不高。在風(fēng)翼助航船舶中,傳統(tǒng)的風(fēng)向風(fēng)速測(cè)量?jī)x無法達(dá)到要求。同時(shí),在船舶航行過程中船舶會(huì)出現(xiàn)橫搖或縱傾,這又增加了準(zhǔn)確測(cè)量風(fēng)向風(fēng)速的難度。本文對(duì)傳感器在運(yùn)動(dòng)情況下的風(fēng)向風(fēng)速測(cè)量進(jìn)行研究。 本文通過云臺(tái)模擬船舶的運(yùn)動(dòng),研究在不同的運(yùn)動(dòng)情況下對(duì)風(fēng)向風(fēng)速測(cè)量的影響。在搖擺速度和搖擺角度的干擾下,得到測(cè)量值并進(jìn)行比較,尋找影響的規(guī)律。通過分析大量實(shí)驗(yàn)數(shù)據(jù),進(jìn)行曲線擬合,從而得到準(zhǔn)確的風(fēng)向風(fēng)速。 采用A45超聲波傳感器進(jìn)行風(fēng)向風(fēng)速的測(cè)量,風(fēng)洞模擬自然風(fēng),云臺(tái)模擬船舶的搖擺,使用姿態(tài)儀測(cè)量此時(shí)傳感器的運(yùn)動(dòng)情況,采集在不同的運(yùn)動(dòng)情況下風(fēng)向風(fēng)速的測(cè)量值,進(jìn)行分析,尋找風(fēng)向風(fēng)速準(zhǔn)確測(cè)量的影響因素。采用BP神經(jīng)網(wǎng)絡(luò)對(duì)運(yùn)動(dòng)速度,姿態(tài)情況和測(cè)量結(jié)果進(jìn)行曲線擬合,以達(dá)到準(zhǔn)確測(cè)量風(fēng)向風(fēng)速的目的。 本文采用MSP430控制器進(jìn)行姿態(tài)信息測(cè)量、云臺(tái)控制和測(cè)量數(shù)據(jù)采集。設(shè)計(jì)VB數(shù)據(jù)采集界面和編寫了上位機(jī)通信程序、進(jìn)行風(fēng)速風(fēng)向數(shù)據(jù)采集。使用MATLAB對(duì)采集到的數(shù)據(jù)進(jìn)行處理,進(jìn)行修正,得到比較準(zhǔn)確的風(fēng)速風(fēng)向值。經(jīng)由誤差補(bǔ)償后的測(cè)量值,可以滿足風(fēng)翼助航船對(duì)風(fēng)速風(fēng)向精準(zhǔn)度的應(yīng)用要求。
[Abstract]:It is necessary to adjust the windward angle of the wind wing according to the wind direction and wind speed in order to achieve the maximum wind energy utilization. The measurement accuracy of the wind direction wind speed is higher than that of the wind wing ship. At present, the wind direction anemometer used on ships is generally for the measurement of meteorological factors, and the precision of wind direction and wind speed measurement is not high. The traditional wind direction and wind speed measuring instrument can not meet the requirement in the wind wing navigation ship. At the same time, roll or trim will occur in the course of ship navigation, which makes it more difficult to accurately measure wind direction and wind speed. In this paper, the measurement of wind direction and wind speed under moving condition is studied. In this paper, the influence of different motion on wind direction and wind speed measurement is studied by simulating ship motion. Under the disturbance of rocking velocity and rocking angle, the measured values are obtained and compared to find the law of influence. By analyzing a large number of experimental data, curve fitting is carried out to obtain accurate wind direction and wind speed. The A45 ultrasonic sensor is used to measure the wind direction and wind speed. The wind tunnel simulates the natural wind, the cloud head simulates the swaying of the ship, the attitude meter is used to measure the motion of the sensor at this time, and the wind direction wind speed is collected under different motion conditions. To find out the factors that affect the accurate measurement of wind direction and wind speed. In order to accurately measure wind direction and wind speed, BP neural network is used for curve fitting of motion velocity, attitude and measurement results. In this paper, MSP430 controller is used for attitude measurement, cloud head control and measurement data acquisition. VB data acquisition interface and PC communication program are designed to collect wind speed and wind direction data. MATLAB is used to process the collected data and correct them to get more accurate wind speed and wind direction. The measured values after error compensation can meet the application requirements of wind speed and wind direction accuracy.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U664.3;U661.3

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本文編號(hào)：1920019