Document Type : Research Paper

Authors

1 PhD. Student, Aerospace Research and Technology, MSRT, Tehran, Iran

2 Assistant Professor, Aerospace Research Institute, MSRT. Tehran,. Iran

3 Professor, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

10.30699/jsst.2020.1143

Abstract

Now, the required samples to achieve the specific precision of sensitivity analysis in design are performed based on trial and error methods. The purpose of this paper is to develop an approach for determining the number of the required sample to achieve the specific precision of sensitivity analysis. Thus, in this paper, a new sensitivity analysis method is proposed based on the Progressive Latin hypercube Sampling (PLHS) and the convergence of the analysis results. For this purpose, a PLHS method has been developed. This cystic approach has led to a sensitivity analysis of accuracy, efficiency, and speed in a variety of models with a large number of large parameters and large changes. Sensitivity analysis has been performed on the design of a hydrazine monopropellant thruster catalyst bed model as a case study. The results of this study indicate that in the sensitivity analysis based on the PLHS, the minimum population required for sensitivity analysis with specified accuracy can be determined. This leads to lower processing costs in the sensitivity analysis process, especially in complex models.

Keywords

Main Subjects

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