INTEGRATION METHOD CAPABLE OF CONTROLLING EXPERIMENTAL ERROR GROWTH IN SUBSTRUCTURE PSEUDO DYNAMIC TEST

Development of Equivalent Force Control Method for Pseudo- Dynamic and Real-time Substructure Tests

The equivalent force control (EFC) method replaces numerical iteration with a feedback control strategy to solve the nonlinear equations of motion in pseudodynamic and real-time substructure tests (RST) using an implicit integration method. The EFC method and its further development with an energy conserving integration method are presented in this paper. The effectiveness and accuracy of the E...

Error estimation of ‎f‎uzzy Newton-Cotes method for Integration of fuzzy functions‎

Fuzzy Newton-Cotes method for integration of fuzzy functions that was proposed by Ahmady in [1]. In this paper we construct error estimate of fuzzy Newton-Cotes method such as fuzzy Trapezoidal rule and fuzzy Simpson rule by using Taylor's series. The corresponding error terms are proven by two theorems. We prove that the fuzzy Trapezoidal rule is accurate for fuzzy polynomial of degree one and...

Designing of LQIG method for controlling the wastegate of a turbocharged diesel engine to increase engine output power using experimental results of engine test chamber laboratory

In this paper, first, using a test set on a turbocharged diesel engine in the engine test room, a nonlinear model is obtained and it is linearized around several operation points. Then, for the linear models, a linear quadratic integral Gaussian controller (LQIG) with variable parameters as function of engine speed is designed and simulated. In the proposed method, by controlling the wastegate,...

Dynamic Scheduling of Substructure Computations

PSO Based Pseudo Dynamic Method for Automated Test Case Generation Using Interpreter

In this paper, we propose a particle swarm optimization (PSO) based hybrid testing technique named as “pseudo dynamic testing” to generate test data for C programs by fulfilling one of the most demanding test adequacy criteria: the all-path testing criterion using an interpreter. The proposed methodology attempts to solve many of the structural testing problems such as dynamic variables, input ...