چكيده به لاتين
In this thesis, a stochastic model for identifying the reaction force of a friction connection is reviewed. The friction connection considered in this dissertation is the face to face connection of the cylindrical joint. Due to the widespread use of such connections in various industries, research in this area is of particular importance. In most cases, contact elements have been used for modelling and identifying the reaction force of this type of connection. This type of modelling, despite the high accuracy, is very costly due to the high number of parameters. Recently, methods called the thin middle layer have been used, to model the connection and identifying the reaction force. Besides the reasonable accuracy, these methods have a lower number of parameters than contact elements, which reduces the time and cost of the calculations. The basis of this research is the use of these methods for modelling. Structural modelling was performed using Ansys Workbench software. In most cases, the modelling does not have the necessary adaptation to the experimental results, therefore, they should be updated using the results obtained from the test. One of the most important issues in updating the model is the uncertainty in the test results, which is due to several reasons such as manufacturing tolerance, error in test data, and so on. Consideration of uncertainties in the test data is performed using a stochastic model updating. In this thesis, the sensitivity analysis method that has been developed recently is used for the stochastic updating.
