Model assisted closed-loop control strategy for selective laser melting

Time Optimal Closed - Loop Fuzzy - Control Strategy for Nonlinear Lunar Lander Mission

Closed Loop Control of 3d Laser Cladding

In this paper, a heat input closed-loop control system based on infrared image sensing for 3D laser cladding is introduced. A high frame-rate (up to 800 frames/s) camera is installed coaxially on the top of the laser-nozzle setup. Complete of the infrared images of the molten pool can be acquired with a short nozzle-substrate distance in different scanning directions, eliminating the noise from...

Adaptive Closed-loop Control Strategy for Paralyzed Skeletal Muscles

Artificial control of paralyzed or paretic muscles became a challenging field and lately an important research topic, stimulated by the advances in technology. In this contribution, classical PI control is compared to the DIRAC (DIRect Adaptive Control) strategy. The DIRAC algorithm is both an auto-tuning and an adaptation method of the controller parameters. Since paralyzed or paretic muscles ...

Closed loop control of FE arm model

Accidents are among the top leading causes of death worldwide. In the European Union, there are about 43.000 reported deaths [1] and 1.3 millions casualties because of road traffic accidents [2] each year. The annual costs to the European Society due to these accidents are more than 160 billion Euros, which is twice the entire budget of the European Union [3]. To prevent, diagnose and treat inj...

Modeling of selective laser sintering/selective laser melting

Selective laser sintering and selective laser melting are powder based additive manufacturing (AM) process that can rapidly manufacture parts with comparable mechanical properties to conventional manufacturing methods directly from digital files. However, the processing recipe development and design optimization of AM parts are often based on trial and error which erodes the benefit of AM. Mode...