Electrification of Directional Drilling Machines for Sustainable Trenchless Excavations

Pugi, Luca; Delogu, Massimo; Grasso, Francesco; Berzi, Lorenzo; Pero, Francesco Del; Savi, Raffaele; Boni, Enrico

doi:10.1109/eeeic.2019.8783793

Cited by 6 publications

(4 citation statements)

References 19 publications

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“…data describing the drilling pod are visible in Table 1. Data described in Table 1 are the product of previous experiences of authors 14,15 also confirmed by current literature. 17,18 An hydraulic plant is used to distribute the power generated by a centralized power-pack to motors and actuators of the drilling pod.…”

Section: Drilling Specificationssupporting

confidence: 77%

“…Authors have some previous experiences regarding design and automation of directional drilling machines 14 ; numerical models and data concerning drilling forces were available from these previous activities. 15 These previous experiences suggested the application of wireline excavation techniques that are currently applied for offshore applications.…”

Section: Drilling Specificationsmentioning

confidence: 99%

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Modeling of an underwater drilling platform for very near shore applications

Pugi

Cocci

Frillici

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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The development of the blue economy involves the construction of marine infrastructures (harbors, marine wind farms, underwater data centers, etc.). All these activities require a geological investigation of the sea bottom. For nearshore and very near-shore applications the most common solution is represented by the adoption of fixed jack-up platforms; however, transportation and deployment of this kind of infrastructure are quite expensive and time-consuming. Also, the adoption of floating drilling technologies that are currently used for offshore applications is often difficult or impossible in shallow waters. In this work, an underwater drilling platform designed for near-shore applications is investigated. The proposed system is designed and optimized for rapid deployment in different operational conditions. This work is focused on the description of this innovative solution including simulation models that have been developed for this activity. Also, simulation models represent an original contribution because they are able to simulate complex interactions of the drilling pod with the surrounding water, with the support ship and with the excavated sea bottom.

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Section: Drilling Specificationssupporting

confidence: 77%

Section: Drilling Specificationsmentioning

confidence: 99%

Modeling of an underwater drilling platform for very near shore applications

Pugi

Cocci

Frillici

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part M:

Self Cite

View full text Add to dashboard Cite

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“…Figure 13 shows the relationship between motor weight m and power rate Q calculated by Equation (2). The power rate of hydraulic motors is larger than that of electric motors of the same weight.…”

Section: Power Rate and Power Rate Densitymentioning

confidence: 99%

“…Hydraulic systems provide high power and a rapid response and have been widely used in many industrial fields. However, the partial or full electrification of hydraulic systems has been increasingly implemented-for example, in aircraft, off-highway machines, commercial vehicles, and automobiles-in order to reduce their environmental impact [1][2][3][4][5][6][7]. On the other hand, some industries continue to actively use hydraulic systems.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Hydraulic and Electric Servo Motors

2022

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Until the 1970s, hydraulic actuators were widely used in many mechanical systems; however, recently, electric motors have become mainstream by virtue of their improved performance, and hydraulic motors have largely been replaced by electric motors in many applications. Although this trend is expected to continue into the future, it is important to comprehensively evaluate which motor is most suitable when designing mechanical systems. This paper presents the results of a survey of the performance of electric and hydraulic servo motors and aims to provide quantitative data that can be used as a reference for selecting appropriate motors. We surveyed AC, AC direct, brushless DC, and brushed DC electric motors and swash plate-type axial piston, bent axis-type axial piston, crank-type radial piston, and multistroke-type radial piston hydraulic motors. Performance data were collected from catalogs and nonpublic data. We compared and evaluated the characteristics of these diverse servo motors using indexes such as torque, rotating speed, output power, power density, and power rate.

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