Abstract: Theoretical research and earthquake damage investigation indicate that there is bend torsion coupling vibration for curved bridge when earthquake occurs. To reduce the bend torsion coupling seismic response, the approach ...

Abstract: During the practice of oil and gas drilling and exploration, the casing wear became more and more serious and well known. A crescentshaped wear pattern is the major wear type and leads to decrease of casing collapse strength. ...

Abstract: In order to study the dynamic characteristics of a high-speed train gear transmission system with cracks, time-varying meshing stiffness of gear teeth with different cracks was obtained using energy method. A torsional ...