Iterative Method of Adjusting the Radius of the Spherical Probe of Mobile Coordinate-Measuring Machines When Monitoring a Rotation Surface

Grechnikov, F. V.; Rezchikov, A. F.; Захаров, О. В.

doi:10.1007/s11018-018-1432-3

Cited by 23 publications

(7 citation statements)

References 1 publication

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“…A decrease in amount of equipment units and reduced maintenance personnel increase the safety of the process. It is proposed to use a cementing complex of a new type, which includes: pumping facility UNBS2-600х70 (УНБС2-600х70, Russia); mobile cement bulk storage TsT-40-m02-01 (ЦТ-40-м02-01, Russia); cement carrier TsT-25-M-02 (ЦТ-25-М-02, Russia); cementing control station SKTsS-01 (СКЦС-01, Russia); TSA-320 (for water injection); water carriers (Dzhus et al, 2020;Andrusyak et al, 2017;Lao & Zhou 2016;Li et al, 2019;Velychkovych et al, 2020;Grechnikov et al, 2018;Wang & Liu 2017, Ivanova & Zabinska, 2021.…”

Section: Proposed Technological Solutionmentioning

confidence: 99%

Technological Capabilities of Well Cementing

Ivanova

Zasadzień

2021

Multidisciplinary Aspects of Production Engineering

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Cementing of casing string is a final operation before the next stage of well construction; it provides maximum operational life of the well. Cementing of casing string is carried out with the use of technology, based on squeezing of the whole volume of drilling mud by special grouting composition. The main purposes of cementing include isolation of water-bearing horizon, strengthening of borehole walls in unconsolidated and unstable rocks. Well cementing process is divided into five subsequent operations. Firstly, grouting mixture is prepared in concrete mixers (cementing units) with necessary water-to-cement ratio and additives. Secondly, prepared grouting solution is injected in a well. Thirdly, the solution is squeezed into the space between the casing pipes and wellbore walls. Then it is necessary to wait until the cement sheath is hardened. And at last, quality control is carried out. For convenient transportation, the equipment for well cementing is installed on the truck chassis (KAMAZ, URAL and etc.). All components are poured in concrete mixer, then the water is added and everything is being mixed until formation of uniform mass, which is later pumped in a well. Oil and Gas Industry Safety Regulations say that «calculated endurance of casing string cementing should not exceed 75% of time of cement thickening, established by laboratory tests». Therefore, it is necessary to carry out all operations of injection of fluids into the well as soon as possible without any incompliances of the cementing technology. With cementing material used and its water-to-cement ratio of 0.5, the average time of cement thickening is 120 minutes, according to laboratory tests. Therefore, a set of operations of injection of fluids should not exceed 90 minutes.

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Section: Proposed Technological Solutionmentioning

confidence: 99%

Technological Capabilities of Well Cementing

Ivanova

Zasadzień

2021

Multidisciplinary Aspects of Production Engineering

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“…Kawalec A et al interpolates the probe tip centre trajectory based on 2nd and 4th order Bezier curves and determines the normal vector at any point on the trajectory [7]. Grechnikov F V et al proposed an iterative algorithm for probe radius correction by successive refinement of the contact point coordinates [8]. Wang Z et al used NURBS curves to obtain the equation for the probe tip centre trajectory and fitted it to obtain the 3D normal vector [9].…”

Section: Introductionmentioning

confidence: 99%

Normal vector centering method for probe correction in cylindrical worm tooth profile measurement

Jie,

Hui,

Zhaoyao

et al. 2023

Eng. Res. Express

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The measurement results of cylindrical worms vary greatly under different probe tip diameters on the Gear Measurement Center (GMC). Considering toroidal enveloping cylindrical worm (ZC1 worm) as an instance, after analysing the worm grinding coordinate system, the probe correction method based on normal vector centering (NVC) is established. The theoretical coordinate values of the points on the normal equidistant line which is rotated into the axial section are used as the probe tip center trajectory. Experiments were carried out with probe tip diameters of 1.0mm, 1.5mm and 2.0mm for the worm tooth profile measurement on a GMC. Compared with the traditional method, the variation between the profile deviations results using the proposed method become smaller and the variation of “profile deviation, total” is reduced from 8.3μm to 0.5μm, the profile slope deviation variation is reduced from 8.6μm to 0.5μm. The proposed method in ZC1 worm tooth profile measurement can effectively reduce the variation between the measurement results under different probe tip diameters on GMC, and also the methodology can be applied on other kinds of cylindrical worms. The method has significance for other curved profiles measurement on coordinate measurements.

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“…For example, in article [6], the features of multi-axis deposition technology are considered and studies are performed to improve the generation of the deposition trajectory. There are a number of studies devoted to the development of techniques and instruments for measuring the geometric specifications and roughness of additive manufacturing products [7][8][9][10][11]. For mechanical engineering products, as a rule, an additional technological operation is required to reduce the roughness.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of Delta Kinematics FDM Printer

Захаров

Пугин

Иванова

2022

J. Phys.: Conf. Ser.

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Additive manufacturing makes it possible to speed up the process of manufacturing a product using a CAD model many times over. This advantage is effectively used in the manufacture of small batches of products with complex surfaces in the automotive and aviation industries. Improvements in printers are needed to improve accuracy and productivity. Traditionally, delta kinematics are considered to have advantages over sequential linear kinematics due to their high travel speed and relatively low cost. However, delta kinematics has received limited application, mainly for personal FDM printers. The article attempts to understand the advantages and disadvantages of delta kinematics for use in 3D printers. For this, the displacements and velocities were simulated for four examples of motion trajectories. The analysis showed that the average speed of movement of the extruder is approximately equal to, and in some cases less than the linear speeds of movements along the rods. At the same time, to ensure a uniform speed of the extruder, significant accelerations are required along the individual rods. This leads to vibrations and ultimately limits the maximum speeds.

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Iterative Method of Adjusting the Radius of the Spherical Probe of Mobile Coordinate-Measuring Machines When Monitoring a Rotation Surface

Cited by 23 publications

References 1 publication

Technological Capabilities of Well Cementing

Technological Capabilities of Well Cementing

Normal vector centering method for probe correction in cylindrical worm tooth profile measurement

Modeling and Analysis of Delta Kinematics FDM Printer

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