航天
航空
核工业
船舶
兵器
军事电子
综合
可靠性
仪器仪表
自动化
电子元器件
电容器、LC滤波器 电阻器、电位器 PCB电路板 真空电子器件 连接器 二极管、晶体管半导体 集成电路和微电子组件 LED系列产品 光电器件 光学材料与光电元器件 继电器 电感元件 集成电路和微电子组件 频率控制和频率选择元件 电子设备用机电元件 电子材料 广播电视制作、播出、发射和传输设备 其它
传感器
光纤传感器 光电传感器 压力传感器 热学量传感器 物位测量系列 声学量传感器 流量传感器 湿度传感器 气体传感器 电学量传感器 速度传感器 力传感器 位置传感器 位移传感器 光学量传感器 加速度传感器 尺度传感器 磁学量传感器 其它传感器
电工器材
电线、电缆 开关电线 插头、插座 电动机 绝缘材料 低压电器 高压电器 防雷及电涌保护器 室内外照明设备 便携式照明设备 灯泡、灯座、整流器 其他
电源
EPS消防应急电源 UPS不间断电源 稳压电源 变频电源 净化电源 特种电源 发电机组 开关电源(AC/DC) 逆变电源(DC/AC) 模块电源(DC/DC) 电池 其它电源产品
通用机械
轴承 密封件 紧固件、连接件 弹簧 泵及真空设备 阀门 齿轮、蜗杆、链传动件 减速箱 气动元件 液压元件 过滤件 工业皮带 清洗、清理设备 制冷设备 电热设备 涂装设备 仓储设备 干燥设备 混合设备 其它未分类
行业设备
机床 机床配附件 塑料机械 包装设备 电焊、切割设备 印刷设备 环保设备 焊接材料与附件 电子产品制造设备 化工设备 铸造及热处理设备 冶炼设备 橡胶机械 玻璃加工设备 试验机 储运设备 过滤设备 空气净化装置 检测设备 安全、防护、消防设备 其它
当前位置:案例 » 航空应用案例 » 正文

Using PXI Technology and LabVIEW on Board Australian Army Black Hawk Helicopters

点击图片查看原图
  • 发布日期:2009-12-07 20:09
  • 有效期至:长期有效
  • 案例区域:广东湛江市
  • 浏览次数4922
  • 留言咨询
 
详细说明

作者:
Steven Blandford - Royal Australian Air Force

行业:
政府/国防, 航空/航天

产品:
PXI-6533, PXI-1000, LabVIEW, PXI-6602, PXI-8156B

挑战:
Instrumenting the Black Hawk helicopter for flight test.

解决方案:
Creating a PXI-based system and providing real-time data acquisition, analysis, logging, and display functions using NI LabVIEW software.

"Using NI LabVIEW software resulted in a flexible, reprogrammable, graphical user interface with the familiar Windows look and feel, plus a short development time."

 

Designing a System for Flight Test and Data Gathering

The Royal Australian Airforce (RAAF) Aircraft Research and Development Unit (ARDU) provides expert instrumentation and flight-test support to the Australian Defense Force (ADF). ARDU engineers designed and developed an Airborne Data Acquisition and Recording System (ADARS) using National Instruments PXI components and LabVIEW software to assist in flight test and data gathering exercises for the Australian Army’s Black Hawk helicopters.

The key requirements of the ADARS system included the ability to acquire, process, and display up to 80 airborne parameters in real time, including engine, flight control, rotor, air, time, space, and position data, as well as day and night cockpit video and audio.

Using Hardware Flexible Enough to Reconfigure and Upgrade

We designed the ADARS with a modular construction so we could reconfigure and upgrade the system in the future. Important design criteria included survivability in extreme environmental conditions, such as temperature, pressure, humidity, shock, and vibration. The ADARS system also needed to meet aerospace crash loading safety requirements and satisfy the strict electromagnetic compatibility requirements of military aircraft.

Advanced use of drafting, 3D modeling, finite element analysis, and numerically controlled machining software tools permitted ARDU engineers to design and integrate more than 4,000 parts for the ADARS system. The system comprises a sealed modular 19-inch rack system, incorporating twin heat exchangers, shelving, and antivibration mounts. We developed components that we can readily remove and reinstall for enhanced serviceability. With its three-part design, we can reconfigure the system for alternative aircraft types with minimal redesign effort.

A National Instruments PXI-1000 chassis and DC power supply accommodates a Pentium class PXI-8156B controller and several data acquisition modules combining small size, high performance, and ruggedness, while complying with strict electromagnetic and environmental requirements. A PXI-6071E analog-to-digital converter acquires up to 64 channels of analog data. The NI PXI-6533 and PXI-6602 modules provide for the acquisition of discrete and periodic-pulsed inputs. We can synchronize a CompactPCI-based Datum time code generator to external Inter-Range Instrumentation Group (IRIG B) or Global Positioning System time sources and then time stamp all acquired data. Spare slots within the PXI-1000 chassis accommodate future channel expansion.

The modular nature of PXI provides for the inclusion of a faster processor or alternative modules for future flight testing with specialized requirements. A full compartment of analog signal conditioning and anti-alias filter modules ensures compatibility with a range of aircraft transducers including strain gages, RTDs, synchro transmitters, thermocouples, and linear position transducers. A military-grade 18-inch LCD display enables enhanced off axis, day, and night time visibility for the flight test engineer. A splash-proof membrane style keyboard and tracking device allows the operator to control ADARS while wearing flight gloves. With its innovative slide mechanism, operators can fold the keyboard upward in a stowed position and allow unimpeded ingress and egress from the aircraft in an emergency situation. A wide area solution differentially corrected GPS unit and associated aero-antennas, combined with a fiber optic gyro-based inertial motion unit, provides accurate aircraft time space and position information.

Using triple deck Hi-8 mm video recorder we can capture cockpit video and audio from a mixture of day or night image-intensified cameras. All video is time stamped from the system time code generator. An RS232 link between the video recorder and PXI controller provides control of the recorder from within LabVIEW. With an IMAQ-1408 video capture card, the flight test engineer can view any one of the three video sources in real time on the LCD screen. Twin, RS232- driven, cockpit-mounted vertical inline displays (VIDS) provide aircrew with a visual indication of selected "critical parameters." An uninterruptible power supply provides a reliable source of DC power to the ADARS system in the absence of aircraft power or during temporary power outages. We can download data from ADARS onto a flash disk or Zip drive via a USB port for the purpose of post processing and archiving.

Cutting Development Time with Flexible LabVIEW Software

Using LabVIEW software resulted in a flexible, reprogrammable, graphical user interface with the familiar Windows look and feel, plus a short development time. Low-level assembler and C code provide a generic data acquisition engine for selected timing and stability critical functions. High-level LabVIEW code provides a graphical user interface to the flight test engineer. Multiple hot key selectable screens provide access to data pages containing critical parameters, flight control, time space and position, performance, pilot workload, engine, and rotor data. We can also select screens for calibration, video monitoring, controlling the video recorder, hardware configuration, data recording, replay, and analysis. The crew can determine ballast and fuel required for each test point from the performance calculator’s real-time updates.

Cutting Flight Trials from Months to Weeks

In recent months, the ADARS system proved instrumental during the First of Class Flight Trials (FOCFT) of Army Black Hawk helicopters for embarked operations from Australian Navy landing platforms amphibious class HMAS Manoora. Data acquired and displayed by the ADARS system enabled us to establish Ship Helicopter Operating Limits (SHOL) for several combinations of sea states, wind speeds and directions, takeoff or landing, aircraft fuel, all-up weight, and center-of-gravity limits.

By providing advice to the aircrew and automating production of the SHOL plot, flight trials that once took several months now are possible in several weeks. Improvements in data quality and the speed with which we can gather data enhanced the ADFs ability to certify aircraft for embarked operation onto Royal Austrian Navy ships of various types and class. The aircrew community can rely on its data and expect reduced risk and enhanced safety margins. For the Australian community, defense forces are better able to respond to a contingency situation and minimize downtime of defense assets.

Capabilities for Future Use

The ADARS system already has helped Black Hawk operate from landing platform amphibian (LPA) class ships. Beyond FOCFT, we anticipate using ADARS not only on Black Hawk but also other fixed and rotary wing aircraft types for engine performance, pilot workload, fatigue monitoring, night vision goggle investigations and more. The ADARS system has enhanced Australia’s aerospace capability and will serve the ADF well for the foreseeable future.

 

作者信息:
Steven Blandford
Royal Australian Air Force
Aircraft Research & Development Unit, RAAF Base Edinbufgh
澳大利亚
Tel: 08 8393 2184
Fax: 08 8393 2812
steven.blandford@defence.gov.au
 

 
0条 [查看全部]  相关评论

公司信息







该企业最新案例
在线客服

0759-2216160

微信公众号
© 2008-2017 运营商: 湛江市东龙网络科技有限公司 国防科技网 广东通信管理局备案:粤ICP备13001948号-2
全国公安机关 备案信息 可信网站不良举报 文明转播