In this work, a novel solid rotor induction motor with toroidal winding (N-TWSRIM) is proposed and its structure and main structural parameters are given. The operating principle is analyzed in accordance with the movement of the armature magnetic field at different times. An equivalent circuit model (ECM) of the N-TWSRIM is established based on composite multilayer theory to analyze and calculate motor performance quickly and accurately. Electromagnetic performance, which includes output torque, stator current, and power factor under different slip, is calculated with ECM, and its results are compared with those of the finite element method. A prototype of the N-TWSRIM is built and experimented on to validate the correctness of the operating principle and ECM. Experimental results on stator current and torque are consistent with the finite element and analytical results.

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According to the new norm’s requirements and regulations for stirrup and related construction , deducing the theoretical calculation formula of stirrup blanking length of anti-seismic component in different levels. And analyzing it and the three empirical calculation methods comparatively, to find out the application conditions and scope of the empirical calculation method.

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A structural evaluating approach is presented by using influence matrix when the support displacements are known. The steps of the evaluating approach are given by applying the expression between the nodal displacements of the upper structure and the support displacements. A single span, two-story plane frame are analyzed for obtaining the nodal displacements and the internal forces of members of the upper structure when the uneven support settlement occurs. The results show that the proposed approach is simple and applicable for analyzing the upper structure due to the support settlement Keywords-uneven settlement; nodal displacement; structural internal force; support displacement; influence matrix