Boeing credits much of the 777X’s improved fuel efficiency to the aircraft’s composite wings, which stretch 71.8m (236ft) from wingtip to wingtip. To make sure that the 777X will fit in existing airport gates, the wingtips will be able to fold upward by 3.5m on each side.
Liebherr-Aerospace has been selected to design, develop, and manufacture the folding wing tip system. With its motor and rotating actuator, this system will fold the wing tip after landing, thus reducing the wingspan of the new wide-body aircraft by 7 meters. The folding wingtip system is the first of its kind in commercial aviation, so extensive testing is required. Not only to ensure passenger convenience (passengers should actually not hear loud noises or significantly feel the action of the mechanics), but also from a safety perspective. Failures or external threats must not compromise both primary and backup systems simultaneously. A wingtip failure will ground the aircraft!
For this critical test program Liebherr-Aerospace uses a Gantner Instruments Q.series system to perform the primary data acquisition tasks. The flexibility of the Q.series system, in combination with a wide variety of commercial off-the-shelf I/O modules, allows Liebherr-Aerospace to maximize test equipment utilization, test bench availability and overall test lab performance. On top of that, the Q.series measurement system features a set of specific features that are crucial for successful aircraft component testing. So does the Q.series system come with precise nanosecond time synchronization between all modules and to external time references, eliminating the uncertainty of data skew during critical test conditions.
The build-in test automation functionality enables quick and efficient monitoring and processing of measurement data, minimizing manual system handling and shortening overall test duration time. And last but not least, the Q.series system has 3 levels of redundancy for assured data availability. Measurement data can be transferred to 2 data storage locations simultaneously and 1 data location for backup.
More Information
Click here to receive a personalized Application Example Pack containing the real-world application example “Boeing 777X Folding Wingtip System Test” and a few bonus application examples within the Aerospace industry!
More articles
High Performance Measuring Module D107 for Frequencies
The Q.bloxx D107 is a new measurement module for the acquisition of frequencies and incremental signals. Due to its fast signal conditioning capability with a clock speed of 288 MHz, the new module is suitable for extreme measurement of rotational speeds, which were not previously possible in this price range.
Read more...Innovative EIS Solution for Next-Generation Battery Storage Systems
Electrochemical Impedance Spectroscopy (EIS) is an analytical tool for anyone involved in the development, maintenance, and advancement of electrochemical systems like batteries, fuel cells, and electrolyzers. Understanding EIS and its benefits can provide a substantial edge in optimizing these systems’ performance and longevity.
Read more...Precise Temperature Measurement with Pt100
Temperature measurement is one of our key competence areas. Here we maintain a position of global leadership. Our advanced 4-channel Q.bloxx A105 measurement module sets new standards in terms of stability and precision. For many different applications, the extremely precise and stable measurement of temperatures is an absolute prerequisite for the control of processes or the success of product innovations. In addition to the essential precision, particularly important aspects of this are the maintenance of stability when changes occur in the ambient temperature and ensuring long-term stability.
Read more...6 Tips for Stress-free Strain Measurement during Fatigue Testing of Aircraft Structures
Strain is the single most important measurement during aircraft fatigue testing. The accuracy and precision of strain gauge measurements is of the greatest importance to exactly determine the durability and damage tolerance of a structure. The higher a structure is in the ‘pyramid of test’, the higher the test complexity, number of measurement channels, and data produced. On top of that the risk in terms of time delay and cost associated to a test program increases more than proportional with the increase in test complexity. Here are six tips to help you choose the right data acquisition system for your fatigue test:
Read more...