Thin?walled parts are widely used in many important fields because of performance and structural lightweight requirements. They critical they usually carry the core functions high?end equipment. However, their high?performance machining has been facing severe challenges, among which dynamics problem is one most obstacles. The system easily subjected to chatter due weak rigidity thin?walled stru...

Thin-walled parts with curved surface are widely used in industrial applications and the high-quality machining is still a major problem because of low stiffness. By using machining-path obtained from design model thin-walled surface, accuracy requirement may easily not be met due to springback clamping deformation when process finished. It novel idea that mapping free-state clamped-state reali...

The problems of the mathematical modeling, eigenvibration, and stability of cantilevered thin-walled beams carrying a spinning rotor at its tip are investigated. The structure modeled as a thin-walled beam encompasses nonclassical features such as anisotropy, transverse shear, and secondary warping, and in this context, a special ply-angle configuration inducing a structural coupling between fl...

This paper presents an improved model for naturally curved and twisted anisotropic beams with closed thin-walled cross-sections. By introducing eigenwarping functions and expanding axial displacements in series of eigenwarpings, the differential equation involving the generalized warping coordinate and the expression for eigenvalues can be derived using the principle of minimum potential energy...

In the mirror milling process of large thin-walled parts, maintaining a constant supporting force is crucial for improving the workpiece local stiffness to suppress vibration. Aiming at the flexible characteristics of large thin-walled parts, this work presents a position-based force explicit control strategy based on online trajectory prediction. An online trajectory pre-modification force con...

Imperata cylindrica Linn. Beauv (Poaceae), commonly known as Darbh in Hindi, is an important drug of “Trinpanchmool” and used extensively for the treatment of various ailments viz. urinary calculi, retention of urine, diabetes, cardiac disorder, gout, common cough and cold, inflammation, anemia, as aphrodisiac, etc. The present study was aimed to undertake pharmacognostical studies to fulfill t...