Wear resistance of blades in planetary concrete mixers. Part II: 3D validation of a new mixing blade design and efficiency evaluation

Valigi, Maria Cristina; Logozzo, Silvia; Rinchi, Mirko

doi:10.1016/j.triboint.2016.06.040

Cited by 26 publications

(20 citation statements)

References 13 publications

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“…For these reasons, the development of robotic or automated trolleys based on the use of 3D optical measuring instruments can be considered essential for diagnostics and the inspection of rail tracks, because they can provide data to get a complete scenario for the damage and they would allow the performance of inspection procedures with minimal human interventions, both during the measurement and data processing phases. In fact, 3D optical digitizers are becoming more and more useful to perform inspection and quality control in mechanics and biomechanics, thanks to their advanced performance due to technological innovations [2][3][4][5][6][7][8][9]. In [2], a cutting-edge procedure to assess wear, based on 3D optical digitizers, was presented and discussed.…”

Section: Introductionmentioning

confidence: 99%

New Instrumented Trolleys and A Procedure for Automatic 3D Optical Inspection of Railways

Valigi

Logozzo

Meli

et al. 2020

Sensors

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This paper focuses on new instrumented trolleys, allowing automated 3D inspection of railway infrastructures, using optical scanning principles and devices for defects and damage evaluation. Inspection of rolling components is crucial for wear evaluation and to schedule maintenance interventions to assure safety. Currently, inspection trolleys are mainly instrumented with 2D contact or optical sensors. The application of 3D non-contact digitizers proposed in this paper allows for a quick and more complete monitoring of the health conditions of railways, also in combination with a proper procedure for automatic 3D inspection. The results of the experimental tests using 3D portable optical scanners on railways are compared with results obtained by a trolley instrumented with 2D contact sensors. The results demonstrate the effectiveness of the trolleys mounting 3D handheld optical digitizers with proper automated software inspection procedures.

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Section: Introductionmentioning

confidence: 99%

New Instrumented Trolleys and A Procedure for Automatic 3D Optical Inspection of Railways

Valigi

Logozzo

Meli

et al. 2020

Sensors

Self Cite

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“…For instance, reverse engineering [1,2] and the development of industrial design or medical components [3][4][5], surface analysis [6,7], wear assessment [3,[8][9][10][11][12], deformation analysis and quality control [3,13], robot positioning, and guiding systems [14][15][16] are typical industrial and medical applications where 3D digital reconstructions are crucial. Three-dimensional scanners are based on various working principles and technologies with different advantages, limitations, and costs.…”

Section: Introductionmentioning

confidence: 99%

Advances in Optomechatronics: An Automated Tilt-Rotational 3D Scanner for High-Quality Reconstructions

Logozzo

Valigi

Canella³

2018

Photonics

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3D vision systems are more and more required in a large variety of applications and mostly for mechanical and medical purposes. This paper presents the study and realization of a prototype of a structured light automated tilt-rotational 3D vision system for high-quality reconstructions of components of various sizes and in cases of freeform and complex surfaces. The main goal of this research work was to develop an instrument with the following main novelties: configurability for different object sizes, high precision and resolution levels and ability to automatically generate the mesh representing the full scanned objects without any intervention of the operator by means of a 2 degrees of freedom automated tilt-rotational mechanical positioning system. A detailed analysis of the instrument and the procedures and results of the performance tests are presented, together with the examination of possible strategies to obtain a better performance, especially by the calibration and the synchronization between the optical and the mechanical systems. As a result, the prototype and the performance parameters resulting from the experimental campaigns, are reported.

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“…The wear resistance of blades was evaluated based on three-dimensional scanning method. The new blade geometry was increased the wear resistance and prolonged the service life [5]. Lee P.Y.…”

Section: Introductionmentioning

confidence: 99%

Optimization design of scraper angle based on orthogonal test

et al. 2018

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Abstract. The scraper angle of milling machine has a direct effect on the milling efficiency. This research establishes the finite element model of scraper, and designs the cutting front angle and the cutting back angle as factor, impact force and the average force for orthogonal test of evaluation indexes. Through simulation analysis, the force is obtained at the different level. At the same time, the simulation results are verified by experiments. The results show that the simulation results of contact force in the X direction are close to the measured results, and prove the accuracy of the simulation results. The optimized scraper is that the cutting angle is 5.5°, and the cutting back angle is 9°. The impact force is minimum, and the resultant of average force and impact force is minimum. The optimization of scraper angle can effectively reduce the impact force and the average force, which provides guidance for the improvement of scraper.

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Wear resistance of blades in planetary concrete mixers. Part II: 3D validation of a new mixing blade design and efficiency evaluation

Cited by 26 publications

References 13 publications

New Instrumented Trolleys and A Procedure for Automatic 3D Optical Inspection of Railways

New Instrumented Trolleys and A Procedure for Automatic 3D Optical Inspection of Railways

Advances in Optomechatronics: An Automated Tilt-Rotational 3D Scanner for High-Quality Reconstructions

Optimization design of scraper angle based on orthogonal test

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