Design of economical noise array experiments for a partially controlled simulation environment

Design of economical experiments for estimation of a response function's moments in a partially controlled laboratory environment is studied. The noise factors affecting the response are assumed to be statistically independent and normally distributed. It is also assumed that if a factor is set to a specific level in the experimentation, its actual value is also a normally distributed random variable with a smaller variance. Experimental design levels of the factors are found by matching first few moments of the response function calculated from the distributions of the factors, with the moments of that calculated from the distributions of the experimental values of the factors. These levels are evaluated with regard to the performance of appropriate moment estimators of the response. Suggestions are made as to which levels and experimental design should be used for different degrees of control in the experimentation environment.


Design of a computer interface for automatic finite element analysis of an excavator boom
Yener, Mehmet; Söylemez, Eres; Department of Mechanical Engineering (2005)
The aim of this study is to design a computer interface, which links the user to commercial Finite Element Analysis (FEA) program, MSC.Marc-Mentat to make automatic FE analysis of an excavator boom by using DELPHI as platform. Parametrization of boom geometry is done to add some flexibility to interface called OPTIBOOM. Parametric FE analysis of a boom shortens the design stages and helps to find the optimum design in terms of stresses and mass.
Design of a high precision hybrid AM machine
Yılmaz, Yunus Emre; Dölen, Melik; Department of Mechanical Engineering (2019)
Precision requirements in fused deposition modelling (FDM) processes have been increasing in recent years, especially after recognizing the potential of FDM process to produce complex and functional components. In order to increase precision of FDM process, 6-axis hybrid manufacturing system, which can carry out additive- and subtractive manufacturing processes in one manufacturing system platform, is designed. During design, kinematic analysis of the machine is done, axial- and angular errors are estimated...
Robust design of lithium extraction from boron clays by statistical design and analysis of experiments
Büyükburç, Atıl; Köksal, Gülser; Department of Industrial Engineering (2003)
In this thesis, it is aimed to design lithium extraction from boron clays using statistical design of experiments and robust design methodologies. There are several factors affecting extraction of lithium from clays. The most important of these factors have been limited to a number of six which have been gypsum to clay ratio, roasting temperature, roasting time, leaching solid to liquid ratio, leaching time and limestone to clay ratio. For every factor, three levels have been chosen and an experiment has be...
Design of attitude estimation algorithms for inertial sensors only measurement scenarios
Candan, Batu; Söken, Halil Ersin; Department of Aerospace Engineering (2022-3-24)
This thesis proposes four novel robust Kalman filter algorithms for attitude estimation using only the measurements of an inertial measurement unit. Efficiency and optimality of the Kalman filter based attitude filters are correlated with appropriate tuning of the covariance matrices. Manual tuning process is a difficult and time-consuming task. Specifically, the inertial measurement unit-only attitude estimation filters are prone to the external accelerations unless their covariances are adapted to gain ro...
A Methodology for cross-resolution modeling in DEVS using event-B refinement
Kara, Ahmet; Oğuztüzün, Mehmet Halit S.; Alpdemir, Mahmut Nedim; Department of Computer Engineering (2014)
This thesis proposes a software engineering solution for implementing simulations via composition of models at different resolution levels with the help of formal methods. Our solution provides a systematic methodology that offers a well-defined sequence of stages to obtain executable converters for entity resolution mapping, given the types of entity attributes that are exchanged at model interfaces and the mapping specifications. Our methodology relies on Event-B as the formal specification language and D...
Citation Formats
G. Köksal, “Design of economical noise array experiments for a partially controlled simulation environment,” COMPUTERS & INDUSTRIAL ENGINEERING, pp. 555–558, 1998, Accessed: 00, 2020. [Online]. Available: