【摘要】：針對高速旋轉(zhuǎn)的航空發(fā)動機轉(zhuǎn)子部件,隨著所需測量轉(zhuǎn)子參數(shù)的測點及需求精度的不斷提高,傳統(tǒng)的導(dǎo)電滑環(huán)式數(shù)據(jù)傳輸系統(tǒng)在可靠性、壽命及帶寬上均不能滿足需求。為彌補傳統(tǒng)數(shù)據(jù)傳輸系統(tǒng)的不足,設(shè)計了一種針對航空發(fā)動機轉(zhuǎn)子部件的基于無線激光的非接觸參數(shù)采集傳輸系統(tǒng)。提出了總體設(shè)計方案,設(shè)計了電能傳輸系統(tǒng),多通道參數(shù)采集系統(tǒng)、非接觸數(shù)據(jù)傳輸系統(tǒng)以及上位機接收程序。由于本設(shè)計系統(tǒng)需要完成對高速旋轉(zhuǎn)部件的參數(shù)進行長時間的采集傳輸,采用傳統(tǒng)的電能供給方法難以有效完成旋轉(zhuǎn)部件間的電能傳輸,因此,通過感應(yīng)供電的方式對位于轉(zhuǎn)子端的參數(shù)采集及傳輸系統(tǒng)提供電能供給。此外,為滿足多通道數(shù)據(jù)同時傳輸?shù)囊?設(shè)計了基于以太網(wǎng)數(shù)據(jù)交換功能的高速多通道參數(shù)采集傳輸系統(tǒng)。多通道參數(shù)采集系統(tǒng)完成對航空發(fā)動機溫度、壓力等信號的AD轉(zhuǎn)換并以以太網(wǎng)幀的形式傳遞給非接觸參數(shù)傳輸系統(tǒng)。非接觸參數(shù)傳輸系統(tǒng)完成多通道數(shù)據(jù)的并串轉(zhuǎn)換,串化后的數(shù)據(jù)以無線激光的形式發(fā)射出去,在接收端通過對光電探測器接收到的數(shù)據(jù)進行解串并轉(zhuǎn)換為以太網(wǎng)幀以后通過以太網(wǎng)口上傳至上位機接收程序,最終完成對采集到的參數(shù)進行解析及存儲的工作。本設(shè)計系統(tǒng)具有多通道、小型化、易安裝、高速傳輸?shù)奶攸c,對本設(shè)計系統(tǒng)進行了試驗驗證,為航空發(fā)動機非接觸參數(shù)采集傳輸提供了一種可靠的途徑。
[Abstract]:For the rotor parts of high-speed rotating aero-engine, the reliability, life and bandwidth of the traditional conductive slip-ring data transmission system can not meet the requirements with the increasing of the measuring point and the demand precision of the rotor parameters needed to measure the rotor parameters. In order to make up for the deficiency of traditional data transmission system, a wireless laser-based non-contact parameter acquisition and transmission system for aero-engine rotor is designed. The overall design scheme is presented. The power transmission system, the multi-channel parameter acquisition system, the contactless data transmission system and the host computer receiving program are designed. Because the system needs to complete the long-time acquisition and transmission of the parameters of the high-speed rotating parts, it is difficult to use the traditional power supply method to effectively complete the electrical energy transmission between the rotating parts, so the power transmission between the rotating components is difficult to be achieved effectively. The power supply is provided to the parameter acquisition and transmission system located at the rotor end by induction power supply. In addition, in order to meet the requirement of simultaneous transmission of multi-channel data, a high-speed multi-channel parameter acquisition and transmission system based on Ethernet data exchange function is designed. The multi-channel parameter acquisition system completes the AD conversion of the aero-engine temperature and pressure signals and transmits them to the non-contact parameter transmission system in the form of Ethernet frames. The contactless parameter transmission system completes the parallel and serial conversion of multi-channel data, and the serialized data is transmitted in the form of wireless laser. At the receiving end, the data received by the photodetector is deseribed and converted into Ethernet frame, and then it is transmitted to the host computer receiving program through the Ethernet port. Finally, the collected parameters are parsed and stored. This design system has the characteristics of multi-channel, miniaturization, easy installation and high-speed transmission. The design system is tested and verified, which provides a reliable way to collect and transmit the non-contact parameters of aero-engine.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：V233

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