NEW SAMPLING METHOD OF FREE-FORM SURFACES ON COORDINATE MEASURING MACHINEEQUIPPED WITH CONTACT PROBE

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ZAHMATI JAVAD; HOSSEINABADI AMIR

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:8 Page(s): 0-0

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Title

NEW SAMPLING METHOD OF FREE-FORM SURFACES ON COORDINATE MEASURING MACHINEEQUIPPED WITH CONTACT PROBE

Author(s)

ZAHMATI JAVAD | HOSSEINABADI AMIR | Issue Writer Certificate

Keywords

INSPECTIONQ1

FREE-FORM SURFACESQ1

SAMPLING STRATEGIESQ1

OPTIMIZATIONQ2

COORDINATE MEASURING MACHINEQ1

Abstract

Free-form surfaces are widely used in engineering applications. These surfaces are complex and withoutrotational symmetry; and for this reason they are inspected using the COORDINATE MEASURING MACHINEsequipped with contact sensor which require a suitable sampling strategy. Sampling algorithms are oneof the most important factors of error creation in the accuracy of substitute geometry. In coordinatemeasuring machines, the sampling strategy involves the estimation of the number of sample points (sample size) and identification of their positions (how they are distributed) on the surface. Thus samplepoints should be distributed on the surface using SAMPLING STRATEGIES that are appropriate for the surface.Often it is difficult to establish such pieces of information (number and the way of distributing thepoints on the surface) owing to the complex nature of FREE-FORM SURFACES. In the present work, for thefirst time a new adaptive sampling strategy by particle swarm OPTIMIZATION algorithm (PSO) forsampling from free-form surface is proposed. The proposed strategy was compared with twoconventional strategies and the deviation between substitute geometry and CAD model is extracted. Thesimulation results showed that in the proposed method the deviation between substitute geometry andCAD model is less than conventional methods by 2 to 3 times (depending on the number of points).Therefore, the high efficiency of the proposed method over other methods is concluded.

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APA: Copy

ZAHMATI, JAVAD, & HOSSEINABADI, AMIR. (2016). NEW SAMPLING METHOD OF FREE-FORM SURFACES ON COORDINATE MEASURING MACHINEEQUIPPED WITH CONTACT PROBE. MODARES MECHANICAL ENGINEERING, 16(8), 0-0. SID. https://sid.ir/paper/356220/en

Vancouver: Copy

ZAHMATI JAVAD, HOSSEINABADI AMIR. NEW SAMPLING METHOD OF FREE-FORM SURFACES ON COORDINATE MEASURING MACHINEEQUIPPED WITH CONTACT PROBE. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(8):0-0. Available from: https://sid.ir/paper/356220/en

IEEE: Copy

JAVAD ZAHMATI, and AMIR HOSSEINABADI, “NEW SAMPLING METHOD OF FREE-FORM SURFACES ON COORDINATE MEASURING MACHINEEQUIPPED WITH CONTACT PROBE,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 8, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/356220/en

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