Work

Conservative Analysis of Transient Heat Transfer in Thermal Protection Systems with Interval Parameters

Year: 2024

Type: article

Abstract: There are many uncertainties in the actual use of thermal protection systems (TPSs). In this paper, an interval finite element model of a TPS under transient heat transfer is established by taking the uncertainties of TPSs as interval parameters. An affine interval finite element method (AIFEM) is proposed to study the temperature response bounds of uncertain TPSs under transient heat transfer conditions. Two numerical examples are given to verify the effectiveness and accuracy of the proposed AIFEM by comparison with the Monte Carlo method. The results show that the AIFEM can provide conservative and efficient calculation results in TPS transient heat transfer design with interval parameters.

Source: Applied Sciences

DOI: 10.3390/app14209446

Authors: Xuelei Feng, Zhiyu Shi, Zheng Yang

Institution: Nanjing University of Aeronautics and Astronautics

Language: English

Topic: Probabilistic and Robust Engineering Design

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: gold

Estimated APC paid: $2,728

Funder: National Natural Science Foundation of China