Airport runway safety retardant system and computer dynamic stimulating method

A technology of dynamic simulation and airport runway, applied in the direction of calculation, on-site paved condensate pavement, roads, etc., can solve problems such as aircraft damage and occupant injury

Inactive Publication Date: 2009-04-08
马玉山 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to mechanical failure, pilot operation error or accidental adverse weather conditions, the aircraft slips off the runway during landing, causing damage to the aircraft and injury to the occupants.

Method used

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  • Airport runway safety retardant system and computer dynamic stimulating method
  • Airport runway safety retardant system and computer dynamic stimulating method
  • Airport runway safety retardant system and computer dynamic stimulating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] First, determine the type of main landing aircraft and its tire type at the airport, and obtain the initial state parameters of the aircraft.

[0052] Model: B-737-200; landing weight: 475.63KN; number of landing gear: 2; load distribution coefficient of main landing gear: 0.935; Slope of the stagnation zone: up 1%; the aircraft enters the stagnation zone at a speed of 80 knots; the scheduled stagnation distance is 35 meters.

[0053] Then, input the above data into the program, determine the time step Δt=0.2sec in the program, and get the calculation output after running the program: the modal damping ratio of the retarding material is 1.21, and the retarding material is found from the experimental curve obtained in the laboratory Density D=350kg / m 3 , so as to determine the retardation material.

[0054] The known width of the airport runway is 60 meters, and the dimensions of the designed arresting zone are as follows: length 100 meters, width 60 meters, and height...

Embodiment 2

[0058] Main landing type: A-310-300; aircraft landing weight: 1206.21KN; number of landing gear: 2; main landing gear load distribution coefficient: 0.942; main landing gear type: double axle and double wheel; main landing gear tire pressure: 1.37MPa; the slope of the block: 1% upward; the speed of the aircraft entering the block is 70 knots; the scheduled block distance is 45 meters.

[0059] Then, input the above data into the program, determine the time step Δt=0.2sec in the program, and get the calculation output after running the program: the modal damping ratio of the retarding material is 1.65, and the retarding material is found from the experimental curve obtained in the laboratory Density D=400kg / m 3 , so as to determine the retardation material.

[0060] The known width of the airport runway is 75 meters, and the dimensions of the designed arresting zone are as follows: length 120 meters, width 75 meters, and height 0.6 meters.

[0061] According to the above-ment...

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PUM

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Abstract

The invention provides an airport runway safe blocking system, where one or two ends of the runway are provided with guiding and blocking regions, and the blocking region is provided with a 1-3% incremental micro upward vertical slope and comprises foundation layer, middle blocking layer and top protective layer on the earth foundation, where the blocking layer is composed of concrete with density 300-500 Kg / m3, and intensity 0.3-08MPa and distributed vertically from weak to strong, and the blocking region is provided with a monitoring device for monitoring and regulating in-system humidity and temperature. And the invention also provides a computer dynamic simulating method for the system and has the beneficial effects: it becomes a necessary emergency rescue ground device and can extend to emergency rescue of military airports and roads. And the method can conveniently and rapidly determine blocking distance and blocking material parameters, and obtains a solution of composing the system.

Description

technical field [0001] The invention relates to the technical fields of civil engineering and computer application, in particular to an airport runway safety blocking system and a computer dynamic simulation method thereof. Background technique [0002] In airports, including military airports and highway construction projects, emergency rescue is an extremely important issue. At present, due to mechanical failure, pilot operation error or accidental adverse weather conditions, the situation of the aircraft slipping off the runway during landing occurs successively, causing damage to the aircraft and injury to the occupants. Similar problems in highway engineering are more serious, and accidents are frequent and severe. Emergency rescue is imminent. Emergency rescue should effectively prevent the aircraft or vehicle from being safely and smoothly blocked due to the aircraft or vehicle slipping off the runway or road surface. This topic requires that the airport and highway...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C9/00G06F17/50E01C1/00E01C7/14
CPCB64F1/025E01C9/007
Inventor 马玉山王尚文郑小平
Owner 马玉山
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