Measurement and verification are one of the prime stages in the entire course of geometrical products in new generation of geometrical product specifications (GPS) standard. Like other kinds of form tolerances, flatness error is one of the important characteristics affecting the functionality and quality of machined components; sufficient efforts have long been made to determine the flatness er...

In orthopaedic surgery, intra-operative bone machining and assembly of osseous fragments are two very important research areas. One of the most challenging applications is the treatment of malignant osseous tumors within the pelvis due to its complex tri-dimensional geometry. The conventional surgical procedure includes tumoral resection (cutting of the osseous tumor) and reconstruction by allo...

The dimensional and geometrical specifications control of a mechanical part is commonly done using coordinate measuring machine. Collecting processing measurement data through probe, it allows the conformity according to specific tolerances. An accurate estimation uncertainty critical; within this framework that our study oriented; we aim estimate parallelism error Guide Expression Measurement ...

Solar cells based on subwavelength-dimensions semiconductor nanowire (NW) arrays promise a comparable or better performance than their planar counterparts by taking the advantages of strong light coupling and light trapping. In this paper, we present an accurate and time-saving analytical design for optimal geometrical parameters of vertically aligned InP NWs for maximal solar energy absorption...

this paper presents the effects of geometric tolerances on the rotating shafts natural frequencies. due to modeling the tolerances, a code is written in matlab 2013 software that produces deviated points. deviated points are controlled by different geometric tolerances, including cylindricity, total run-out and coaxiality tolerances. final surfaces and models passing through the points are crea...

Abstract Tolerance allocation methods significantly contribute to the qualification of Additive Manufacturing (AM) for (small-)series production ensuring high performance and efficiency. However, their usage prerequisites availability quantitative, reliable information on impact assigned tolerances resulting manufacturing costs. The given article proposes a novel methodology systematic developm...