1. Experimental and finite-element free vibration analysis and artificial neural network based on multi-crack diagnosis of non-uniform cross-section beam

B. Asmar; M. Karimi; F. Nazari; A. Bolandgerami

Volume 5, Issue 1 , Summer and Autumn 2015, , Pages 1-11

  Crack identification is a very important issue in mechanical systems, because it is a damage that if develops may cause catastrophic failure. In the first part of this research, modal analysis of a multi-cracked variable cross-section beam is done using finite element method. Then, the obtained results ...  Read More

2. Large amplitude vibration prediction of rectangular plates by an optimal artificial neural network (ANN)

Mahdi Karimi; Alireza Shooshtari; Soheil Razavi

Volume 4, Issue 1 , Summer and Autumn 2014, , Pages 55-65

  In this paper, nonlinear equations of motion for laminated composite rectangular plates based on the first order shear deformation theory were derived. Using a perturbation method, the nonlinear equation of motion was solved and analytical relations were obtained for natural and nonlinear frequencies. ...  Read More

Manufacturing Processes
3. Optimizing locomotive body structures using imperialist competitive algorithm

Mahdi Ghamami; Masoud Shariat Panahi; Maryam Rezaei

Volume 3, Issue 2 , Winter and Spring 2014, , Pages 105-112

  In today's design, system complexity and increasing demand for safer, more efficient and less costly systems have created new challenges in science and engineering. Locomotives are products which are designed according to market order and technical needs of customers. Accordingly, targets of companies, ...  Read More