Second-Order Parabolic Equation to Model, Analyze, and Forecast Thermal-Stress Distribution in Aircraft Plate Attack Wing-Fuselage

被引:6
作者
Angiulli, Giovanni [1 ]
Calcagno, Salvatore [2 ]
De Carlo, Domenico [3 ]
Lagana, Filippo [3 ]
Versaci, Mario [2 ]
机构
[1] Mediterranea Univ, DIIES Dept, Via Graziella Feo di Vito, I-89122 Reggio Di Calabria, Italy
[2] Mediterranea Univ, DICEAM Dept, Via Graziella Feo di Vito, I-89122 Reggio Di Calabria, Italy
[3] Mediterranea Univ, DICEAM Dept, TEC Spin In, Via Graziella Feo di Vito, I-89122 Reggio Di Calabria, Italy
关键词
second-order parabolic problems; special steels; nondestructive testing and evaluation; infrared thermography; thermal stresses; NDT;
D O I
10.3390/math8010006
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
During a flight, the steel plate attack wing-fuselage of an aircraft is subjected to cyclical thermal stress caused by flight altitude variation that could compromise the functionality of the plate. Thus, it is compulsory after a sequence of flights to evaluate the state of plate health. In this work, we propose a new dynamic model on the basis of the physical transmission of heat by conduction governed by a second-order parabolic partial differential equation with suitable initial and boundary conditions to analyze and forecast thermal stresses in the plate of a P64 OSCAR B airplane. Developing this model in the COMSOL Multi-Physics(R) environment, a finite-element technique was applied to achieve the thermal-stress map on the plate. The achieved results, equivalent to those obtained by a campaign of infrared thermographic experiment measurements (not yet used in the aeronautical industry), highlight the evolution of the thermal load of the steel plate attack wing-fuselage, adding evidence of possible incoming fatigue phenomena to identify in advance if the steel plate must be replaced.
引用
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页数:21
相关论文
共 27 条
  • [1] An Accurate Finite Element Method for the Numerical Solution of Isothermal and Incompressible Flow of Viscous Fluid
    Abali, Bilen Emek
    [J]. FLUIDS, 2019, 4 (01):
  • [2] A Neuro-Fuzzy Network for the design of circular and triangular equilateral microstrip antennas
    Angiulli, G
    Versaci, M
    [J]. INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 2002, 23 (10): : 1513 - 1520
  • [3] [Anonymous], 2014, FINITE ELEMENT PROCE
  • [4] [Anonymous], TECH PHYS LETT
  • [5] [Anonymous], PERIOD ENG NAT SCI
  • [6] [Anonymous], 2019, ADV PROBLEM SOLVING
  • [7] [Anonymous], INT J SUPPLY CHAIN M
  • [8] [Anonymous], PARTIAL DIFFERENTIAL
  • [9] [Anonymous], AIR DISTASTERS
  • [10] Burrascano P, 2015, Ultrasonic nondestructive evaluation systems: industrial application issues