China’s successful development of the helicopter tail rotor automatic folding system inclined beams
helicopter The system design technology expert Xu
2011 年 1 月 7, which lasted 192 days, range 10 thousand nautical miles of the Gulf of Aden Chinese navy off Somalia 6th Fleet escort victory return. Straight 8 escort helicopters, as China’s complete localization of a large helicopter, flying out the door the first time, its excellent performance and outstanding performance as the main escort fleet equipment, its rotor folding system more perfect show trouble-free status, proof of China-made helicopters and equipment of good quality. After hearing the news, Xu feeling particularly excited that when folded in straight 8 escort helicopter hydraulic system development process, he and his colleagues were not wasted after all your effort.
Xu is the AVIC helicopter system design professional researcher, the professional head of the current design of hydraulic oil, is mainly engaged in the design of hydraulic systems and pre-research work. To work 21 years, has been awarded the second power group 2, third class 2; by Group Technology Progress Award twice, the system development work for our helicopter made its due contribution.
technology research perseverance
straight 8 escort machine development work began in 2003, leaving space ship limitations, making the ship with rotor helicopter must be able to achieve/Last automatic folding inclined beams. Collapse/Expand the implementation of the action, designed to achieve a new technical challenges, not only the need to address the sequence control, speed control and other issues, also need to address issues such as rotary seals.
helicopter hydraulic systems Research Group undertook professional folding hydraulic system design task, this work smoothly or not determines success or failure of development of the helicopter with the ship, and this is the first set of helicopter rotor/tail inclined beams automatic folding system. Xu received the mission, led the team to work immediately. In the engineering design phase, they repeatedly read books at home and abroad automatic folding system, understand the hydraulic control technology, in reference to foreign-related information, based on repeated exchanges with the finished product plants, and gradually formed a system of design and finished research
system program, the amount of time to complete the project quality and design. During debugging in assembly, attachment of a failure caused folding system does not work. First flight around the corner, can not tolerate any slack and delay. Xu arrived carrying fault parts manufacturers directly to find the cause of the failure to discuss improvements. Attached a few days, overnight soak in his laboratory, and manufacturers with the technical staff to improve program verification, and timely completion of product design improvements, and ultimately ensure the successful maiden flight. Folding system successfully developed scientific and technological achievements won the Group Award, Xu has been awarded the first flight the second class.
assiduously innovative and realistic
with helicopter technology, more and more complex hydraulic system functions, traditional hydraulic system piping and accessories throughout the the whole machine, to remove the installation and maintenance difficult. Xu Feng to grasp the dynamics of the hydraulic professional development, master of professional cutting-edge technology, worked tirelessly to try to learn and use new technologies to the professional helicopter hydraulic system design, the look direction, work hard, paid off.
2009 years, in a helicopter design process, Xu track to fully tap the domestic hydraulic attachments comprehensive technical capabilities for collaborative design, does not change the system in principle, does not affect the system functionality and performance of the premise , the bold use of integrated design technologies, according to the modular integrated design system function. Comparison of the original state, reducing the time 18 matching products to reduce the pipe 31, more than 10% weight loss system.
in a helicopter hydraulic system design stage, Xu and abroad focusing on the technology used similar models compared, focusing on the coordination between the various professional, focusing on the host and co-ordination between accessories manufacturers to explore the model needs application of new technologies and possibilities. He combined with “failure – security,” Reliability analysis and quantitative analysis of the analog models, developed from the top of the helicopter hydraulic system files starting, through a number of related professional requirements analysis, functional requirements of the hydraulic system, system characteristics, performance requirements and environmental requirements, interface requirements,
interchangeability requirements for a detailed analysis, discussion, multi-angle, full demonstration of the hydraulic system design requirements and development, the formation of the hydraulic system design.
Xu said that the helicopter is to be delivered to users, and we want empathy, put yourself in the user’s location, from the perspective of the user to check their own work. In the test with the production site, Xu always positive with users, listen to user comments on the hydraulic system, the problem of disposal site as a top priority of work to do, to take measures to deal with, but also to provide reasonable and adequate explanation .
“road is long Come, happiness and earth.” Systematic study of scientific research in the avenue, and his design of the rotor automatic folding systems, Xu is orderly, and acting freely . His passion for helicopters, hurry, solid, practical and diligent with their own helicopter systems for the study of a broad road paved.share: