近年來(lái)，大規(guī)?；蛉叽绲淖酝七M(jìn)仿真引起了人們廣泛的興趣。然而，這些數(shù)值模擬往往缺乏物理試驗(yàn)的驗(yàn)證。因此，可靠和有效的大規(guī)?；蛉叽缒Ｐ驮囼?yàn)顯得尤為重要。因此，自然環(huán)境下的大型模型試驗(yàn)技術(shù)得到了足夠的重視和顯著的發(fā)展。大型艦船模型試驗(yàn)主要包括三個(gè)方面：螺旋槳的結(jié)構(gòu)載荷與響應(yīng)、波浪作用下的運(yùn)動(dòng)和推進(jìn)性能。

In recent years, large-scale or full-scale self-propelled simulation has attracted extensive interest. However, these numerical simulations often lack the verification of physical experiments. Therefore, reliable and effective large-scale or full-scale model tests are particularly important. Therefore, the large-scale model test technology in the natural environment has received sufficient attention and significant development. The large-scale ship model test mainly includes three aspects: structural load and response of propeller, motion and propulsion performance under wave action.

艦船模型試驗(yàn)系統(tǒng)的設(shè)計(jì)是一個(gè)復(fù)雜的過(guò)程，是保證試驗(yàn)成功的關(guān)鍵。大型模型試驗(yàn)系統(tǒng)可分為控制系統(tǒng)、數(shù)據(jù)測(cè)量與采集系統(tǒng)和GPS/INS組合導(dǎo)航系統(tǒng)三部分。

The design of ship model test system is a complex process, and it is the key to ensure the success of the test. The large-scale model test system can be divided into three parts: control system, data measurement and acquisition system and GPS / INS integrated navigation system.

模型控制系統(tǒng)是艦船模型驅(qū)動(dòng)的核心，主要包括上位機(jī)、從機(jī)、兩個(gè)螺旋槳和舵機(jī)伺服電機(jī)。主機(jī)發(fā)出控制命令，使用Windows7操作系統(tǒng)，控制軟件使用VisualBasic編寫(xiě)。

The model control system is the core of the ship model drive, mainly including the upper computer, the slave computer, the two propellers and the servo motor of the steering gear. The host sends out control commands, using Windows 7 operating system, and the control software is written in Visual Basic.

用戶控制界面顯示舵角、轉(zhuǎn)數(shù)等各種參數(shù)，也可以通過(guò)控制界面輸入?yún)?shù)來(lái)改變船模的運(yùn)動(dòng)。從機(jī)接收到上位機(jī)發(fā)出的指令，將其轉(zhuǎn)換為實(shí)時(shí)信號(hào)，直接控制螺旋槳控制電機(jī)和方向舵控制電機(jī)。下位機(jī)讀取伺服電機(jī)的狀態(tài)數(shù)據(jù)，將其轉(zhuǎn)換為數(shù)字信號(hào)反饋給上位機(jī)。

The user control interface displays various parameters such as rudder angle and rotation number, and can also input parameters through the control interface to change the motion of the ship model. The slave computer receives the instructions from the upper computer, converts them into real-time signals, and directly controls the propeller control motor and the rudder control motor. The lower computer reads the state data of the servo motor, converts it into a digital signal and feeds it back to the upper computer.

在本次試驗(yàn)中，自主研制了一臺(tái)儀器來(lái)準(zhǔn)確測(cè)量螺旋槳產(chǎn)生的推力和扭矩。一個(gè)32位通道的商業(yè)數(shù)據(jù)收集器被用來(lái)把測(cè)量的電信號(hào)轉(zhuǎn)換成數(shù)字信號(hào)，然后傳輸?shù)揭慌_(tái)筆記本電腦上。采用動(dòng)態(tài)信號(hào)分析軟件對(duì)數(shù)據(jù)進(jìn)行實(shí)時(shí)記錄和分析。

In this test, we independently developed an instrument to accurately measure the thrust and torque generated by the propeller. A 32-bit channel commercial data collector is used to convert the measured electrical signals into digital signals, which are then transmitted to a notebook computer. The dynamic signal analysis software is used to record and analyze the data in real time.

該模型使用了非遙感控制。船上少需要兩名人員進(jìn)行測(cè)試工作：一人負(fù)責(zé)駕駛，另一人負(fù)責(zé)數(shù)據(jù)收集。該數(shù)據(jù)測(cè)量與采集系統(tǒng)由三個(gè)加速度傳感器、一臺(tái)自行研制的儀器、一個(gè)數(shù)據(jù)采集器和一臺(tái)筆記本電腦組成。測(cè)量的參數(shù)包括船體的垂直加速度、螺旋槳的推力和扭矩。采用加速度傳感器測(cè)量船體的深沉運(yùn)動(dòng)，對(duì)加速度曲線進(jìn)行二次積分，可以得到船體的升沉運(yùn)動(dòng)曲線。

The model uses non remote sensing control. At least two personnel are required on board to carry out the test: one is responsible for driving and the other is responsible for data collection. The data measurement and acquisition system consists of three acceleration sensors, a self-developed instrument, a data collector and a notebook computer. The measured parameters include the vertical acceleration of the hull, the thrust and torque of the propeller. The heave motion curve of the hull can be obtained by measuring the heave motion of the hull with an acceleration sensor and integrating the acceleration curve twice.

艦船模型試驗(yàn)系統(tǒng)的設(shè)計(jì)部分內(nèi)容就講解到這里了，如果您對(duì)此有興趣了解更多相關(guān)事項(xiàng)，或者說(shuō)您有定制大型模型的需求，可以隨時(shí)來(lái)我們網(wǎng)站http://www.jjdoor.com.cn進(jìn)行咨詢。

This is the end of the design of the ship model test system. If you are interested in learning more about this, or if you have a need to customize a large-scale model, you can come to our website at any time http://www.jjdoor.com.cn Consult.