design source
Due to the design of the control law, the design of the tilting structure is difficult and practical, and it can be used as an alternative solution for the domestic surveying and mapping drones . It has been unanimously recognized by the school's judges, with the first total mechanical category. The results won the first prize of the 26th Feng Ru Cup.
Based on the project, we upgraded the performance of the whole machine according to the content learned in the overall design of the aircraft. Although the tilting rotorcraft is less available for China's aircraft projects that are not yet fully and reliably designed, it has led to problems such as excessive thickness of the airfoil in the design process and inadequate design considerations for the center of gravity of the aircraft. The problem, but our group of students in the course of the course according to the teacher, the students in the course of the course to constantly modify the design of the group, overcoming the difficulties in the design.
Design requirements
First of all, we carefully read the narrative of the topic. Considering that the current urban aircraft is mainly helicopter, if we want to propose a performance that can surpass the design of existing helicopters and conventional navigation aircraft, we must have the power form and structural layout. Innovative. Inspired by a review of some of the world's current urban aircraft developed, we propose a design for a coaxial tilting rotorcraft. The goal is to meet the performance requirements of inter-city flights, and on this basis, the trade-offs between performance and demand, cost and other factors are pursued. In addition, the design also requires carrying capacity, including load capacity, range, and take-off and landing performance; although the discussion in the SRR phase is mostly at a qualitative level, these directions have an important impact on later work.
Followed by the program comparison work. Through the information reviewed online, a large number of urban aircraft design plans, data and other related materials were collected, analyzed and organized to form staged text materials. In the end, in combination with the topic requirements, we chose the Cessna 172R and conventional civilian helicopters as the main competitive solutions, and then collected relevant materials from the online transport and sorted out relevant materials for the new technology of the strategic transport aircraft and incorporated them into the design report.
Contrast model Cessna 172R:
Occupant: 1 passenger capacity: 3 people Length: 8.28
Wingspan: 11.0 m
Height: 2.72m
Wing area: 16.2m2
Empty weight: 736 kg
Maximum takeoff weight: 1,113 kg
Finally, the design of the program. Combined with the experience accumulated by Feng Ru Cup's small verification machine, we finally determined the form of the combination of the flying wing layout and the coaxial tilting rotor. During the take-off phase, the six propellers on the three power shafts are coupled to work. When transitioning into the leveling mode, the double forwards are gradually tilted and the tail power is gradually stopped. During the level flight, the tail motor stops rotating. During the flat flight to the landing transition process, the double forwards are gradually tilted in the vertical direction, and the tail motor resumes to rotate, completing the rappel.
We have proposed the following design requirements:
Type: Small private jet for the crowd: Future urban high-end consumer population Range of use: Intercity flight: 1 passenger capacity: 2 people cruising altitude: 3000m
Activity radius: 1000km
Maximum speed: 400km/h
Cruising speed: 300km/h
Due to the design of the control law, the design of the tilting structure is difficult and practical, and it can be used as an alternative solution for the domestic surveying and mapping drones . It has been unanimously recognized by the school's judges, with the first total mechanical category. The results won the first prize of the 26th Feng Ru Cup.
Based on the project, we upgraded the performance of the whole machine according to the content learned in the overall design of the aircraft. Although the tilting rotorcraft is less available for China's aircraft projects that are not yet fully and reliably designed, it has led to problems such as excessive thickness of the airfoil in the design process and inadequate design considerations for the center of gravity of the aircraft. The problem, but our group of students in the course of the course according to the teacher, the students in the course of the course to constantly modify the design of the group, overcoming the difficulties in the design.
Design requirements
First of all, we carefully read the narrative of the topic. Considering that the current urban aircraft is mainly helicopter, if we want to propose a performance that can surpass the design of existing helicopters and conventional navigation aircraft, we must have the power form and structural layout. Innovative. Inspired by a review of some of the world's current urban aircraft developed, we propose a design for a coaxial tilting rotorcraft. The goal is to meet the performance requirements of inter-city flights, and on this basis, the trade-offs between performance and demand, cost and other factors are pursued. In addition, the design also requires carrying capacity, including load capacity, range, and take-off and landing performance; although the discussion in the SRR phase is mostly at a qualitative level, these directions have an important impact on later work.
Followed by the program comparison work. Through the information reviewed online, a large number of urban aircraft design plans, data and other related materials were collected, analyzed and organized to form staged text materials. In the end, in combination with the topic requirements, we chose the Cessna 172R and conventional civilian helicopters as the main competitive solutions, and then collected relevant materials from the online transport and sorted out relevant materials for the new technology of the strategic transport aircraft and incorporated them into the design report.
Contrast model Cessna 172R:
Occupant: 1 passenger capacity: 3 people Length: 8.28
Wingspan: 11.0 m
Height: 2.72m
Wing area: 16.2m2
Empty weight: 736 kg
Maximum takeoff weight: 1,113 kg
Finally, the design of the program. Combined with the experience accumulated by Feng Ru Cup's small verification machine, we finally determined the form of the combination of the flying wing layout and the coaxial tilting rotor. During the take-off phase, the six propellers on the three power shafts are coupled to work. When transitioning into the leveling mode, the double forwards are gradually tilted and the tail power is gradually stopped. During the level flight, the tail motor stops rotating. During the flat flight to the landing transition process, the double forwards are gradually tilted in the vertical direction, and the tail motor resumes to rotate, completing the rappel.
We have proposed the following design requirements:
Type: Small private jet for the crowd: Future urban high-end consumer population Range of use: Intercity flight: 1 passenger capacity: 2 people cruising altitude: 3000m
Activity radius: 1000km
Maximum speed: 400km/h
Cruising speed: 300km/h
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