群馬大学図書館 OPAC

概要: application/pdf<br />Journal Article<br />In the present paper, we examine a design method of robust servo Internal Model Control with control input saturation. First of all, we clarify the condition that Internal Model Control … has robust servo characteristics for the system with control input saturation. From this consideration, we propose new design method of Internal Model Control with robust servo characteristics. A numerical example to illustrate the effectiveness of the proposed method is shown. 続きを見る

概要: application/pdf<br />Journal Article<br />Parametric vibrations of beams carrying a concentrated mass subjected to both static and periodic axial acceleration are analyzed under four sets of boundary conditions. Introducing … the mode shape function, which is expressed as the product of the power series truncated to the fourth order, and the trigonometric function, we obtain the boundary conditions at both ends combined with a simply supported end or a clamped end by exchanging the coefficients of the power series. Applying the Galerkin method to basic equations, we reduce the coupled Mathieu's equations. The stability boundaries of the principal, secondary and combination parametric resonances are examined using Hsu's method. Calculations are carried out for various values of the location of the concentrated mass in each boundary condition. It is found that the inertia force caused by the concentrated mass under periodic acceleration expands the instability region extensively. In particular, the boundary is extended when the concentrated mass approaches the end with a movable axial displacement. 続きを見る

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