Recently, the "Kunlong" AG600-9008 full aircraft static test elevator control condition - 67% ultimate load test was successfully completed in the aviation industry strength, marking that the static test of the whole aircraft officially entered the test implementation stage. Under the severe challenges of extremely arduous research and development tasks, complicated epidemic prevention and control situation, and multiple pressures encountered in the battle, the whole line of strength model development has firmly grasped the green mountains, forged ahead courageously, gone against the wind in the ups and downs, created miracles in the difficult grinding, and opened the New Year model test "opening red" with practical actions, writing a heavy stroke for the dragon and tiger roaring in 2022.
Since the delivery of the AG600 aircraft 9008 full-aircraft static test aircraft on December 25, 2021, the strength has risen to the challenge and charged forward, launched a model battle that races against time and wrestles with the task, and continues to write a new chapter in the development of the model with the strength wisdom and strength strength.
Courageously undertake the mission of the same heart casting heavy equipment
The development of the model cannot be delayed, and the mission of strength is indispensable. "Kunlong" AG600 is a large-scale fire extinguishing/water rescue amphibious aircraft independently developed by the aviation industry, and is also the world's largest amphibious aircraft under research, which is of breakthrough significance to the development of the general aviation industry in the mainland. As the only aircraft strength research and verification center in the aviation industry, the Strength Institute has continued to be the "check" and "pulse" of AG600 for many years, undertaking a large number of components and full aircraft strength test tasks, and strongly supporting the development of national aviation equipment and the development of civil aircraft industry.
At the beginning of the development, Wang Binwen, head of the AG600 aircraft full aircraft strength test leading group and director of the Strength Institute, asked the development of the whole line to resolutely implement the deployment of the group party group, the overall requirements of the development of the standard model, with a high sense of responsibility, a strong sense of mission and efficient execution, overcome difficulties, really do solid work, and make due contributions to the development of AG600.
The tide is in the sea, and the time is not waiting. The major models highlight the macro planning role of the intensity of development, Wang Binwen led the team to closely dock with Tongfei South China Company, signed a strategic framework agreement on aviation business, sincere cooperation, coordinated attack, and showed the courage to forge ahead and pursue excellence. Give full play to the professional advantages of strength appraisal, lead scientific researchers to continuously break through key technologies, build an innovation system of "two-line parallel, integrated interaction" of physical experiments and virtual experiments, use technological innovation to resolve development risks, and show the courage to be the first and innovate. Strengthen management and scientific decision-making, set up the AG600 aircraft full aircraft strength test leading group for the first time, and set up six teams such as administrative command, professional technology, quality and safety, etc., to systematically ensure the intensity of the development task, showing the vigor of vigorous upwards and breaking through the barriers.
When the order is given, the mission will be fulfilled. In order to promote the development of the model, the test team considered the overall situation, overcame difficulties such as resource shortages, provided more than 3,000 square meters of test site for aircraft assembly, provided special equipment and operators for special operations, and provided office conditions and logistics service support to help complete the test aircraft assembly task. Repeatedly communicated with the R&D center of the tester Tongfei South China Company, carried out multiple rounds of iterative design of the test task statement, load treatment results, test loading scheme and other contents, and froze the technical input conditions. Take the initiative, efficient support, accelerate the completion of the first round of design, general outline review, 64 technical documents, 92 sets of drawings; bearing system installation, strain gauge paste 18,506 pieces; measuring equipment calibration 17,000 channels, cable 401,000 meters, loading equipment more than 200 sets, to promote the preparation of the whole machine test.
The cadres and workers of the Strength Institute are united in their will and work together, with hard work, with perseverance, and with the figure of struggle, actively ensure the smooth progress of the static test of the AG600 full machine, escort the ground verification task of the structural strength of the "Kunlong" machine, and forge steel and iron bones for the "heavy equipment of the country" to achieve the early realization of spreading its wings and soaring...
Leading innovation Sincere cooperation to break through difficulties
Sail together in the same boat and sail through the wind and waves. The Strength Institute systematically plans and adheres to innovation, takes the model development goal as the guide, coordinates the parallel multi-verification projects, and scientifically carries out the preparation of verification plans; actively carries out research on key technical research projects with the goal of resolving development risks; takes the innovative verification mode as the direction, and systematically develops the application of the verification mode of virtual reality parallel and integrated interaction.
According to the overall requirements of model development, the AG600 aircraft 9008 all-aircraft static test aircraft must complete the final assembly task in a limited time, and also carry out test preparations synchronously, which poses an unprecedented challenge to the test team. After full discussion and bold innovation, the test team proposed a large-span variable configuration gantry structure machine entry plan. After the plan was proposed, the team designers took advantage of the victory to pursue, picked the lights in the night battle, carefully refined each step, repeatedly demonstrated every detail, innovated and developed a multi-point coordinated lifting technology, realized the rapid lifting installation support fixture, and after the experts carefully and enthusiastically reviewed and discussed, and finally successfully completed the installation and entry plan verification work. At this moment, it was raining outside the window, but the room was a celebratory and pleasant atmosphere, and the happy smiling faces of the experimental team were filled in front of the computer screen in the office.
In order to better prepare the work before the static test of the whole machine, the virtual test team intervened in advance and tackled the key problems in parallel, and innovatively introduced a number of key technologies such as multi-level analysis model construction of the whole machine, virtual assembly and static/dynamic interference inspection of the test system, displacement/strain three-dimensional cloud map display based on three-dimensional interpolation, etc. in the AG600 virtual test, and evaluated and displayed the status of the test system and test pieces in the entire test process in a more advanced, more accurate and intuitive way, reducing the risk of the test and expanding the test boundary. It realizes the integration of virtual and real in multiple levels and dimensions.
The static test team and the virtual test team of the whole aircraft of the Strength Institute have joined hands and coordinated operations, overcome one difficulty after another, and strongly supported the development of major aviation equipment. The innovative application of a series of key technologies highlights the value concept of "strong and measured, rigid and flexible" of strength, and interprets the responsibility of strength people to "be loyal and dedicated, and pursue dreams and blue skies".
Go against the wind and protect the node without fear of wind and rain
Long winds and waves will sometimes hang directly on the clouds and sails to the sea. In the face of the sudden, complex and changeable new crown epidemic, the intensity of people stepped forward, fearless of wind and rain, against the current, day and night continuously fighting in the model and the front line of the fight against the epidemic, showing the strength of not afraid of hardships, willing to dedicate, dare to fight.
The epidemic is the order, and prevention and control is the responsibility. After the outbreak of the new round of the epidemic, the Intensity Institute set up an on-site decision-making leading group for the first time, actively coordinated, unified management, strictly checked from the aspects of epidemic prevention and control, quality and safety, on-site management, etc., and did a scientific and rigorous job in various tasks while safely and effectively preventing and controlling the epidemic. On December 23, 2021, Xi'an pressed the pause button and the city implemented closed management. At this very moment, the AG600 model line personnel of the Intensity Institute took the initiative to ask for help, did not hesitate, stationed on the front line, and steadily promoted major tasks. When the footsteps of the day are connected with the duty of the night, the Chinese red and the aviation blue are particularly dazzling, the choice without regret is the responsibility and responsibility of the intensity person, and the silent dedication is the truest embodiment of the strength person to the aviation service to the country.
In the 101 test plant of the Strength Institute, aerial work trucks, lift platform vehicles, forklifts and other special equipment shuttle back and forth, tacitly cooperate with each other, the action is like flowing clouds and flowing water; the test measurement and strain gage pasting personnel are drilling into the extremely uneven fuselage floor and drawing sideways, sandwiched in the narrow gap of the wave suppression board to grind and patch; technical personnel carefully planned and optimized the plan, turned the original serial work into parallel rush, strength assessment, coordination of follow-up test plans and plans, and carried out nearly 30 pre-test preparations in full swing. Even though the night was dark, the intensity test site was still brightly lit. The flickering lights, like the light emitted in the quiet night, made the figure of the struggle brilliant and bright.
In the battlefield without the smoke of gunfire, the intensity of the day and night, facing the difficulties, continuing to struggle, in the big war test showed the intensity of "showing strength in the wind, practicing real skills at an extraordinary moment, and hammering the ability to hammer in the emergency state", and won the first victory in the epidemic prevention battle and the model attack.
The journey begins, the drums of war urge! The charge trumpet of the static test of the whole aircraft has been sounded, standing at a new starting point, the intensity will bear in mind the entrustment, adhere to the original intention of "aviation to serve the country", practice the mission of "aviation power", keep the integrity and innovation, move forward courageously, face the "double test" of epidemic prevention and control and model development, run the third stick developed by AG600, and contribute outstanding strength to the aviation power in the new era!