Periodic solution of the (2 + 1)-dimensional nonlinear electrical transmission line equation via variational method

Abstract The soliton solutions of the (2 + 1)-dimensional nonlinear electrical transmission line equation are discussed by Md. Abdul Kayum, et al. (Results in Physics, Volume18, 2020, 103269). In this paper, we obtain its periodic solution by the variational method, which is expected to shed a light on the study of the solitary wave theory

Study on the nonlinear vibration of embedded carbon nanotube via the Hamiltonian-based method:

This article mainly studies the vibration of the carbon nanotubes embedded in elastic medium. A new novel method called the Hamiltonian-based method is applied to determine the frequency property of the nonlinear vibration. Finally, the effectiveness and reliability of the proposed method is verified through the numerical results. The obtained results in this work are expected to be helpful for the study of the nonlinear vibration

Research on forming quality of poly-wedge pulley spinning

As an important power transmission part, pulleys are widely used in automobile industry, agricultural machinery, pumps and machines. A near-net forming process for six-wedge belt pulleys manufacturing was put forward. For this purpose, the required tooth shape and size can be formed directly by spinning without machining. The whole manufacturing procedures include blanking, drawing and spinning. The spinning procedure includes five processes, performing, drumming, thickening, toothing and finishing. The forming defects occurred during each forming processes of poly-wedge pulley spinning, such as the drumming failure, flanged opening-end, folded side-wall, insufficient bottom size, flashed opening-end, cutting-off bottom, are introduced, and the factors influencing the defects are analyzed. The corresponding preventive measures are put forward