Multitasking is an important part of today’s manufacturing plants. Multitask machine tools are capable of processing multiple operations at the same time by applying a different set of part and tool holding devices. Mill-turns are multitask machines with the ability to perform a variety of operations with considerable accuracy and agility. One critical factor in simultaneous machining is to cre...

This paper presents an innovative approach to the automatic modeling of buildings composed rotational surfaces, based exclusively on airborne LiDAR point clouds. The proposed starts by detecting gravity center building’s footprint. A thin slice parallel one coordinate axis around was considered, and a vertical cross-section rotated passing through center, generate 3D building model. constructed...

Abstract For artillery weapons, improving range or mobility is an eternal contradiction, so lightweight design the key method to solve this contradiction. The application of composite material can improve degree lightening and enhance comprehensive combat effectiveness artillery, as adapt requirements modern war. This paper analyzed characteristics, performances capable areas common-used materi...

Vehicle-mounted 2-axis turrets are widely used in high bandwidth tracking systems, frequently encountered in air-to-ground, ground-to-air and air-to-air targeting. Existing controllers for these systems are generally implemented in classical proportional-integral-derivative (PID) form. The objective of this paper is to examine the novel application of constrained model predictive control (MPC) ...

Abstract The paper presents the derivation of a new equivalent skin friction coefficient for estimating parasitic drag short-to-medium range fixed-wing unmanned aircraft. is derived from an aerodynamic analysis ten different aircraft used surveillance, reconnaissance, and search rescue missions. simulated using validated unsteady Reynolds-averaged Navier Stokes approach. UAV’s significantly inf...