RELIABILITY ESTIMATION OF CYLINDER STRUT OF A TRAINING AIRPLANE BY MEANS OF PROBABILISTIC DESIGN METHODOLOGY

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SAADAT ALIREZA; BARATI EHSAN

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:9 Page(s): 233-240

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Title

RELIABILITY ESTIMATION OF CYLINDER STRUT OF A TRAINING AIRPLANE BY MEANS OF PROBABILISTIC DESIGN METHODOLOGY

Author(s)

SAADAT ALIREZA | BARATI EHSAN | Issue Writer Certificate

Keywords

RELIABILITYQ2

MONTE CARLO SIMULATIONQ1

RESPONSE SURFACE METHODQ1

BOX-BEHNKEN TABLESQ1

CYLINDER STRUTQ1

Abstract

In this paper the methodology of RELIABILITY analysis in aerial structures has been developed. This methodology has been carried out on a special specimen. The selected specimen is a CYLINDER STRUT of the landing gear system of a training airplane. This specimen is one of the most important parts of the landing gear system. Because of its special shape, no analytical solution exists for calculating the stress in it. Therefore, by means of the surface response method and BOX-BEHNKEN TABLES, a deterministic equation for calculating the stresses in critical points of the specimen has been produced. So, in order to obtain the RELIABILITY of this part via probabilistic method, MONTE CARLO SIMULATION has been used. The applied loads have been modeled with one pressure, one bending moment and one concentrated force.These loads have been assumed to be independent random variables. Also, the probability distribution function of the pressure and the bending moment have been assumed to be normal and the probability distribution function of the concentrated force has been assumed to be lognormal. The dimensions of the specimen are deterministic and the mechanical properties of the material are a normal distribution with standard deviation equal to 10 percent of its mean value. The results showed that the minimum RELIABILITY of this specimen is 99.9997 percent. So, the design of the CYLINDER STRUT is safe for aerial applications from the point of RELIABILITY.

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APA: Copy

SAADAT, ALIREZA, & BARATI, EHSAN. (2016). RELIABILITY ESTIMATION OF CYLINDER STRUT OF A TRAINING AIRPLANE BY MEANS OF PROBABILISTIC DESIGN METHODOLOGY. MODARES MECHANICAL ENGINEERING, 16(9), 233-240. SID. https://sid.ir/paper/179780/en

Vancouver: Copy

SAADAT ALIREZA, BARATI EHSAN. RELIABILITY ESTIMATION OF CYLINDER STRUT OF A TRAINING AIRPLANE BY MEANS OF PROBABILISTIC DESIGN METHODOLOGY. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(9):233-240. Available from: https://sid.ir/paper/179780/en

IEEE: Copy

ALIREZA SAADAT, and EHSAN BARATI, “RELIABILITY ESTIMATION OF CYLINDER STRUT OF A TRAINING AIRPLANE BY MEANS OF PROBABILISTIC DESIGN METHODOLOGY,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 9, pp. 233–240, 2016, [Online]. Available: https://sid.ir/paper/179780/en

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