民机客舱下部吸能结构分析与试验相关性研究

Abstract

Abstract:

A finite element crash model of a typical civil airplane sub-cabin structure is developed and then a structural energy absorption analysis is conducted with the LS-Dyna code. An energy absorption design method is introduced based on energy absorption structure concept to minimize the cabin floor acceleration response. Then a full-scale test article is designed and manufactured, and a drop test is conducted to verify the design features and the modeling method. A correlation evaluation method based on energy is introduced, and the finite element model is updated after the correlation analysis between the pre-test analysis results and the test results. The updated analysis results show good agreement with the test results. The error of the average peak acceleration response at the centroid of the simulated occupant is 16.44%, and the error of the average maximum rebound velocity of the model is 10.53%. The global deformation modes of the test and simulation also fit well. But the error of the energy absorption duration and time when the peak acceleration appears are fairly large, which indicates that certain structural modeling features, such as the structural joint dynamic failure mode, have significant impact on the computational results.

Key words: civil airplane, energy absorption design, energy absorption structure, drop test, crashworthiness

CLC Number:

V271.1

LIU Xiaochuan, ZHOU Sufeng, MA Junfeng, SUN Xiasheng, MU Rangke. Correlation Study of Crash Analysis and Test of Civil Airplane Sub-cabin Energy Absorption Structure[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, 33(12): 2202-2210.

References

[1] Al-khalil M. Overview of aircraft accidents in the last 10 years. CRAHVI Workshop: Crash and Impact Modeling of Structures, 2002.

[2] European Transport Safety Council. Increasing the survival rate in aircraft accidents: impact protection, fire survivability and evacuation. Brussels: European Transport Safety Council, 1996.

[3] Fasanella E L, Jackson K E, Jones Y T, et al. Crash simulation of a Boeing 737 fuselage section vertical drop test. Proceedings of the Third KRASH User’s Conference, 2001.

[4] Byar A. A crashworthiness study of a Boeing 737 fuselage section. Philadelphia, PA: Drexel University, 2003.

[5] Fasanella E L, Widmayer E, Robinson M P. Structural analysis of the controlled impact demonstration of a jet transport airplane. Journal of Aircraft, 1987, 24(4): 274-280.

[6] Lepage F. Results of the airliner sub-passenger floor structure drop test. CRASURV, CEAT Test Report S98/4449000 part5, 2000.

[7] Jackson K E. Analytical crash simulation of three composite fuselage concepts and experimental correlation. Journal of the American Helicopter Society, 1997, 42(2): 116-125.

[8] Jackson K E, Fasanella E L. Crashworthy evaluation of a 1/5-scale model composite fuselage concept. NASA/TM-1999-209132, 1999.

[9] Gou Z Q, Sun X S, Song B F. Research on crashworthiness simulation optimization of an agriculture and forestry aircraft fuselage frame. Journal of Mechanics Strength, 2008, 30(3): 396-399. (in Chinese) 苟仲秋, 孙侠生, 宋笔锋. 农林飞机简化框体模型坠撞仿真及优化. 机械强度, 2008, 30(3): 396-399.

[10] Ren Y R, Xiang J W, Luo Z P, et al. Effect of cabin floor oblique strut on crashworthiness of typical civil aircraft fuselage section. Acta Aeronautica et Astronautica Sinica, 2010, 31(2): 271-276. (in Chinese) 任毅如, 向锦武, 罗漳平, 等. 客舱地板斜撑杆对民机典型机身段耐撞性能的影响. 航空学报, 2010, 31(2): 271-276.

[11] Liu X C, Zhou S F, Sun X S, et al. Energy absorption optimization of civil airplane sub-floor structure. Mechanical Science and Technology for Aerospace Engineering, 2011, 30(11): 1968-1972. (in Chinese) 刘小川, 周苏枫, 孙侠生, 等. 民用飞机客舱地板下部结构吸能优化.机械科学与技术, 2011, 30(11): 1968-1972.

[12] SAE J211-1. Instrumentation for impact test—Part 1— electronic instrumentation. Safety Test Instrumentation Standards Committee, 2007.

[13] Fasanella E L, Jackson K E. Best practices of crash modeling and simulation. NASA/TM-2002-211944, 2002.

[14] Fasanella E L. Impact testing and simulation of a crashworthy composite fuselage section with energy absorbing seats and dummies. NASA/TM-2002-211731, 2002.

[15] Lyle K H, Bark L W, Jackson K E. Evaluation of test/analysis correlation methods for crash applications. Proceedings of the 57th American Helicopter Society Annual Forum, 2001.

Correlation Study of Crash Analysis and Test of Civil Airplane Sub-cabin Energy Absorption Structure

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