Simulation Methods for Assessing Accuracy of Measurements

Sładek, Jerzy

doi:10.1007/978-3-662-48465-4_5

Cited by 15 publications

(20 citation statements)

References 26 publications

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“…The industry developed automated machine tools producing large quantities of parts generating the need for fast and accurate measurement of components in 3D. To realize this, the first coordinate measuring machines were constructed, allowing measurements first in two and then in three axes [4]. The next step was to equip these machines with drives and controls to automate the measurement process and quickly process large amounts of measurement data.…”

Section: Foundations Of Metrology 40mentioning

confidence: 99%

Towards Metrology 4.0 in Dimensional Measurements

Wieczorowski¹,

Trojanowska²

2023

Journal of Machine Engineering

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The paper presents the transformations taking place in length and angle metrology related to Metrology 4.0, a measurement strategy resulting from Industry 4.0. Metrology in an industrial conditions is gradually focusing more and more on advanced measurement systems. The coming reality will see the development of communication between systems and their components, as well as the individual sensors belonging to them. The Internet of Things and artificial intelligence as well as the possibility of using augmented or virtual reality will play a momentous role. The demand for these technologies results in the development of new specialized software and hardware solutions, the use and availability of which are diametrically different compared to the past. Also, the use of AI and cybersecurity in metrology is a topic that is receiving increasing attention. Metrology 4.0 is therefore becoming a very important part of the functioning of industry, changing the philosophy and organization of measurements carried out on the basis of new measurement techniques.

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Section: Foundations Of Metrology 40mentioning

confidence: 99%

Towards Metrology 4.0 in Dimensional Measurements

Wieczorowski¹,

Trojanowska²

2023

Journal of Machine Engineering

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“…In the machining of mold surfaces, milling machining centers are commonly used, and Coordinate Measuring Machines (CMMs) are used in accuracy assessment, A compendium of knowledge on the subject can be found in [1] by Sladek. Researchers have proposed numerous solutions to improve and evaluate the accuracy of freeform surfaces produced in milling machining.…”

Section: Introductionmentioning

confidence: 99%

Simulation for Gap Estimation of Freeform Surfaces Assembly Based on Complex Measurement Data

Poniatowska,

WERNER,

Wojtowicz

2024

Preprint

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This paper presents a simulation method for evaluating the accuracy of assembly of two mating freeform surfaces based on the spatial CAD model of the gap between the surfaces. CAD models of actual surfaces are the basis for determining the gap model. Digital measurement data representing form profiles are determined in measurements on a coordinate measuring machine according to a regular grid of points, and data representing waviness and surface roughness on a profilometer. The SGP components separated in the measurement process are summed up in the CAD modeling process. In the next step, a closure simulation is carried out by docking the inverted complex model of one surface to the surface model of the other surface. In this way, a spatial complex CAD model of the gap between the surfaces is obtained, mapping the effect of all the components of the irregularity on the tightness of the assembly. Based on the obtained model, it is possible to determine its maximum dimension (estimate the local width of the gap between actual surfaces) and the average of local dimensions, but also to illustrate the detailed distribution of local dimensions of this model in the form of a color map. The effectiveness of the proposed method was verified experimentally for the closing surfaces of the elements of the injection mold (cavity and core).

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“…Since the 1990s, the evaluation of uncertainties has been the subject of a lot of published work [12][13][14][15][16][17][18][19]. Regarding uncertainties, the main ideas are contained in the documents of the Join Committee for Guides in Metrology, i.e.…”

Section: Introductionmentioning

confidence: 99%

Impact of thermal gradients on the geometry correction of a bridge coordinate measuring machine

Hennebelle¹,

Coorevits²,

Asmai³

et al. 2020

Meas. Sci. Technol.

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If the problems related to the parts and measurement strategy of Coordinate Measuring Machines (CMMs) are not taken into consideration, temperature variations become the main source of measurement uncertainties. Indeed, they may cause variations in geometry as well as reference point drift. The effect of drift is sometimes minimized by CMM users and is not well quantified in general. The aim of this paper is to present a physical method to determine the evolution of CMM geometry and drift which is based directly on CMM temperature variations and construction parameters, i.e. the position of the axes measurement scales and reference points of each axis. The method is applied to a Zeiss CMM Contura G2. The consequences of these CMM evolutions are simulated in the measurement of a sphere generated by a Renishaw Machine Checking Gauge. The proposed method falls within the framework of an uncertainty assessment methodology performed by multi-level Monte Carlo simulation, where the first level corresponds to the characterization of the CMM evolution.

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Simulation Methods for Assessing Accuracy of Measurements

Cited by 15 publications

References 26 publications

Towards Metrology 4.0 in Dimensional Measurements

Towards Metrology 4.0 in Dimensional Measurements

Simulation for Gap Estimation of Freeform Surfaces Assembly Based on Complex Measurement Data

Impact of thermal gradients on the geometry correction of a bridge coordinate measuring machine

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