Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
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Conference Object Two Novel Formulations for the Optimum Design of Rack-And Steering Mechanisms(Springer Science and Business Media B.V., 2024) Kiper,G.A numerical and an analytical optimization formulations are presented for design of rack-and-pinion steering mechanisms. The distance between the uprights, the angle between the steering arm and wheel axles are assumed to be predesigned. The numerical method enables design of the steering arm, the rack, the rack offset and then the tie rod length can be computed using the symmetrical configuration of the mechanism. The analytical method results in a cubic polynomial equation, root of which gives only one parameter (steering arm or rack offset) based on the assumption that the rack offset is equal to the half of the difference between the distance between the uprights and the rack. Both methods optimize weighted sum of the least-squares of the error between wheel turning angle generated by the mechanism and desired angle according to Ackermann steering principle. The methods are illustrated with a numerical example. When numerical optimization is used, the error is less than 0.2° for 36° angle range. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.Conference Object Citation - Scopus: 3Four-Bar Function Generation Using Excel Solver(Springer Science and Business Media B.V., 2024) Söylemez,E.; Kiper,G.The Chapter presents a simple and efficient way of approximating a function with a four-bar mechanism using four or five design parameters including one or both of the initial crank angles. The method only involves solution of linear set of equations and evaluating determinants, whereas nonlinear equations are numerically solved using a simple program such as Excel. So, the method is easy to explain and can be taught in an undergraduate course along with the well-known linear three precision point synthesis problem. Precision point synthesis, order synthesis, mixed order synthesis, least squares approximation and extreme point synthesis can all be treated using the same method. The proposed method is illustrated with numerical examples for all mentioned synthesis problems and shown to be quite efficient with very low amount of structural error values. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.