Selective Laser Melted Digital Hydraulic Valve System

Chekurov, Sergei; Lantela, Tapio

doi:10.1089/3dp.2017.0014

Cited by 22 publications

(15 citation statements)

References 10 publications

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“…However, structural analysis was not considered in the study (Chekurvo and Lantela, 2017). A hydraulic block directs the working fluid in a system through valves, linking pumps and actuators.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic manifold design via additive manufacturing optimized with CFD and fluid-structure interaction simulations

Alshare

Calzone

Muzzupappa

2019

RPJ

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Purpose The purpose of this study is to investigate the feasibility of using additive manufacturing (AM) technique to produce an efficient valve manifold for hydraulic actuator by redesigning valve blocks produced by conventional methods. Design/methodology/approach A priori, a computational fluid dynamics (CFD) analysis was carried out using the software ANSYS Fluent to determine the optimal flow path that results in least pressure drop, highest average velocity and least energy losses. Fluid–structure interaction (FSI) simulations, processed with imported pressure distribution from the CFD, were conducted to determine the resulting loading and deformations of the manifold assembly. Findings The new design offers a 23 per cent reduction of oil volume in the circuit, while weighing 84 per cent less. When using the new design, a decrease of pressure drop by nearly 25 per cent and an increase in the average velocity by 2.5 per cent is achieved. A good agreement, within 16 per cent, is found in terms of the pressure drop between the experiment and computational model. Originality/value It is possible to build an efficient hydraulic manifold design by iterative refinement for adequate production via selective laser melting (SLM) and minimize used material to circumventing building support structures in non-machinable features of the manifold.

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Section: Introductionmentioning

confidence: 99%

Hydraulic manifold design via additive manufacturing optimized with CFD and fluid-structure interaction simulations

Alshare

Calzone

Muzzupappa

2019

RPJ

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“…The design of the solution principle has to be linked to a part orientation by optimizing the functional surfaces and overhangs ( 8) (Meisel et al, 2017). In addition, the part orientation influences not only the mechanical properties (Meisel et al, 2017), but also the robustness (Chekurov and Lantela, 2017). Even under disadvantageous conditions (e.g.…”

Section: Iced21mentioning

confidence: 99%

Derivation of Criteria for Assessing Solution Principles Conformal for Additive Manufacturing

2021

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Additively manufactured final products and components are not always tailored to the additive manufacturing (AM) process, but they need to be in order to exploit the many advantages and potentials that AM provides. Therefore, an appropriate AM design should be targeted, which reduces the necessary iterations in the developing process of AM products. Although there is a large number of existing literature on the Design for Additive Manufacturing (DfAM), designers usually lack criteria in order to assess AM-conformity in conceptual design. In this paper, we provide a basis for the assessment of solution principles regarding their conformity for additive manufacturing.First, existing literature on DfAM and AM products is reviewed comprehensively to derive criteria for the AM-conformity of solution principles. Subsequently, the correlations between these criteria are identified including the interdependencies to be considered when assessing AM-conformity. A basis for assessment is created, which offers designers early support in the development of AM-conformal designs.

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“…Either commercial or custom-made valves require high performance electronic control cards and additional valves are added to the system to show a damping effect. Therefore, the complexity of the system increases [19,[21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Digital Hydraulic Valve Operated by Servo Motors

Ozalp

Polat

Çetinkaya

et al. 2021

Eng. Technol. Appl. Sci. Res.

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This paper describes a new type of digital hydraulic valve run by two servo motors. Digital hydraulics is a cutting-edge technology, which saves more exhausted energy than conventional hydraulic valves. It includes conventional valves, but its working principle is different. Similar or different size valves constitute a digital hydraulic valve assembly. When the assigned valves are opened, a certain amount of flow is obtained from the output of the valve assembly. To control a digital hydraulic valve, Pulse Number Modulation (PNM) Control technique is used for equal valve flow rates, while Pulse Code Modulation (PCM) is used for different valve flow rates. Valves are exerted by independently launched electric coils. Previous studies used controller board and external power booster circuits for coils. In this study, a new type of digital hydraulic valve is designed, manufactured, and tested with the PNM method. The studied valve body has two different valve groups. Every group includes 16 equal valves and 1 camshaft rotated by 1 servo motor. The servo motors are controlled by a PLC. The calculated performance index is found to be 5.1ms which is similar to the results of previous studies. The experimental results showed that the cam and servo motor controlled digital hydraulics is applicable to variable speed control hydraulic systems.

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Selective Laser Melted Digital Hydraulic Valve System

Cited by 22 publications

References 10 publications

Hydraulic manifold design via additive manufacturing optimized with CFD and fluid-structure interaction simulations

Hydraulic manifold design via additive manufacturing optimized with CFD and fluid-structure interaction simulations

Derivation of Criteria for Assessing Solution Principles Conformal for Additive Manufacturing

Investigation of a Digital Hydraulic Valve Operated by Servo Motors

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