Before 1980s, the circular suspension spring in automobile subjected to torsion fatigue load, under the cyclic normal tensile stresses, the majority of fatigue
Modal analysis is a fundamental and important task for modeling and control of the flexible manipulator. However, almost all of the traditional modal analysis m
There are few relevant researches on coils by tempering,and the variations of microstructure and properties of steel coil during the tempering process also rema