scholarly journals Reliability-Based Design of Thermal Protection Systems with Support Vector Machines

2018 ◽  
Author(s):  
Laura White ◽  
Thomas K. West ◽  
Andrew J. Brune
Keyword(s):  
Support Vector Machines ◽  
Thermal Protection ◽  
Support Vector ◽  
Thermal Protection Systems ◽  
Reliability Based Design ◽  
Vector Machines ◽  
Protection Systems

Optimal Reliability-Based Design Using Support Vector Machines and Artificial Life Algorithms

2007 ◽  
pp. 59-79
Author(s):  
Jorge Hurtado
Keyword(s):  
Support Vector Machines ◽  
Earthquake Engineering ◽  
Artificial Life ◽  
Numerical Models ◽  
Optimal Solution ◽  
Support Vector ◽  
Practical Application ◽  
Reliability Based Design ◽  
Vector Machines ◽  
Reliability Based Optimization

Reliability-based optimization is considered by many authors as the most rigorous approach to structural design, because the search for the optimal solution is performed with consideration of the uncertainties present in the structural and load variables. The practical application of this idea, however, is hindered by the computational difficulties associated to the minimisation of cost functions with probabilistic constraints involving the computation of very small probabilities computed over implicit threshold functions, that is, those given by numerical models such as finite elements. In this chapter, a procedure intended to perform this task with a minimal amount of calls of the finite element code is proposed. It is based on the combination of a computational learning method (the support vector machines) and an artificial life technique (particle swarm optimisation). The former is selected because of its information encoding properties as well as for its elitist procedures that complement hose of the a-life optimisation method. The later has been chosen du to its advantages over classical genetic algorithms. The practical application of the procedure is demonstrated with earthquake engineering examples.

Trends in the development of flexible thermal protection systems for modern aircraft

2020 ◽  
pp. 10-21
Author(s):  
V. G. Babashov ◽  
◽  
N. M. Varrik ◽  
Keyword(s):  
High Temperature ◽  
Thermal Protection ◽  
Heat Removal ◽  
Operating Conditions ◽  
Passive Protection ◽  
Thermal Protection Systems ◽  
Heat Protection ◽  
Protection Systems ◽  
Protected Surface ◽  
Flexible Panels

The emergence of new types of space and aviation technology necessitates the development of new types of thermal protection systems capable of operating at high temperature and long operating times. There are several types of thermal protection systems for different operating conditions: active thermal protection systems using forced supply of coolant to the protected surface, passive thermal protection systems using materials with low thermal conductivity without additional heat removal, high-temperature systems, which are simultaneously elements of the bearing structure and provide thermal protection, ablation materials. Heat protection systems in the form of rigid tiles and flexible panels, felt and mats are most common kind of heat protecting systems. This article examines the trends of development of flexible reusable heat protection systems intended for passive protection of aircraft structural structures from overheating.

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