Design and experimental tests on hydraulic actuator made of composite material

Solazzi, Luigi

doi:10.1016/j.compstruct.2019.111544

Cited by 31 publications

(30 citation statements)

References 10 publications

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“…In [8,9], the cylinder tube was in S275JR steel, and it was designed for at 30 MPa and 35 MPa working pressure, similarly our reference geometry. In [8,9], the cylinder bore radius was equal to 25 mm and equal to The reference hydraulic cylinder tube is 150 mm in bore radius (r i ), 172.5 mm in external radius (r e ), and 2300 mm in length (L). The piston rod has a hollow circular cross-section where the inner radius (r ir ) and the outer radius (r er ) are 25 mm and 80 mm, respectively.…”

Section: The Reference Hydraulic Actuatormentioning

confidence: 99%

“…In [8,9], the cylinder tube was in S275JR steel, and it was designed for at 30 MPa and 35 MPa working pressure, similarly our reference geometry. In [8,9], the cylinder bore radius was equal to 25 mm and equal to 70 mm, i.e., one sixth and about a half of our component, respectively. The S275JR steel has a lower yielding strength (σ y = 235 MPa) compared to the S355 steel used in the present study.…”

Section: The Reference Hydraulic Actuatormentioning

confidence: 99%

“…In the heavy vehicles contest, hydraulic actuators can be exploited to minimize both the overall vehicle weight and to rationalize the weight of a prescribed component by increasing, for example, the transportable loading of the vehicle itself [7][8][9][10] or by significantly reducing the mass of the ballast required for vehicle stabilization.…”

Section: Introductionmentioning

confidence: 99%

“…The possibility of using composite materials for hydraulic actuators seem to be meager; in fact, a few contributions are noticeable, see [7][8][9][10]. In [7], the authors present an experimental test of hydraulic actuators on static and fatigue cyclic pressurization and, also aspects regarding wear.…”

Section: Introductionmentioning

confidence: 99%

“…In [8,10], a methodology is presented for designing the cylinder tube and the rod in composites of a hydraulic actuator, and the analytical results and the experimental data are compared. In [9], the feasibility of a hydraulic cylinder in composites is investigated by numerical FE analyses. Static analyses are exploited to investigate the stress and the strain field caused by oil pressure.…”

Section: Introductionmentioning

confidence: 99%

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Feasibility Analysis of a Double-Acting Composite Cylinder in High-Pressure Loading Conditions for Fluid Power Applications

Mantovani

2020

Applied Sciences

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A preliminary study on a double-acting hydraulic cylinder subject to high-pressure loading conditions (pressure = 350 bar) and with a bore diameter of 300 mm is presented. The substitution of the reference steel cylinder tube with a multi-material tube is investigated. In detail, a solution providing a steel thin inner liner wrapped by carbon composite materials is analytically and numerically tested in terms of weight reduction. The composite lay-up design and the component geometry are built to comply with manufacturing constraints for a relatively high-volume production. The alternative multi-material cylinder is designed to ensure the same expected performance as its steel counterpart. Firstly, the non-conventional hydraulic cylinder was designed by extending Lamé’s solution to composite materials, by adopting the micro-mechanics theory of composites in order to bear the maximum operating pressure by monitoring its radial and axial deformation. The selection of the most appropriate carbon reinforcement was investigated. The influence of the stiffness-to-weight and the strength-to-weight ratio of the reinforcement on the design is discussed. Secondly, finite element analyses were performed to evaluate the occurrence of buckling and the modal response of the actuator considering the fluid and of the cylinder own weight influence. The results confirm the validity of the new cylinder tube design compared to the reference steel component. The proposed barrel weights 80 kg compared to the 407 kg of the reference cylinder, with a weight reduction of ~80%. Furthermore, it has a compact design with a decrease of the barrel outer diameter of ~5.3%.

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Section: The Reference Hydraulic Actuatormentioning

confidence: 99%

“…In [8,9], the cylinder tube was in S275JR steel, and it was designed for at 30 MPa and 35 MPa working pressure, similarly our reference geometry. In [8,9], the cylinder bore radius was equal to 25 mm and equal to 70 mm, i.e., one sixth and about a half of our component, respectively. The S275JR steel has a lower yielding strength (σ y = 235 MPa) compared to the S355 steel used in the present study.…”

Section: The Reference Hydraulic Actuatormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Feasibility Analysis of a Double-Acting Composite Cylinder in High-Pressure Loading Conditions for Fluid Power Applications

Mantovani

2020

Applied Sciences

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Design of the composite hydraulic cylinder with geodesic dome trajectory: A numerical study

Coskun

Şahi̇n

2022

Polymer Composites

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Hydraulic cylinders are used in many different areas from aviation to construction machinery and are generally manufactured using conventional steels that stand out with their low strength to weight ratio. In this study, it was aimed to design a hydraulic cylinder using composite materials to reduce cylinder weight. In this context, a novel composite hydraulic cylinder was designed, and numerical analyses for the composite portions of the hydraulic cylinder were carried out. For the numerical model, an aluminium liner and cylinder heads with the geodesic dome profiles were used, and composite layers were formed on their surfaces by using the Ansys ACP module. In the numerical

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Comparison of mechanical properties of the Type 1 and Type 2 composite hydraulic cylinder designs: A numerical study

Coskun

Şahi̇n

2023

Polymer Composites

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Hydraulic cylinders can reach enormous sizes depending on the working pressure and application areas. These structures, which are typically fabricated using traditional steels, can be quite heavy, which can cause a number of issues, particularly low system efficiency and fuel performance. A Type 1 composite hydraulic cylinder (CHC) with geodesic dome trajectories was created in our earlier work, and the effects of composite material utilization on the structural weight and mechanical responses were examined. Furthermore, the applicability of the geodesic dome to the CHCs was examined, and the benefits and drawbacks of using the dome profile were found. A Type 2 CHC was created in the current study, and the structural performances of Type 1 and Type 2 CHCs were compared. In this regard, numerical analyses were done to assess the mechanical responses and structural performance of a Type 2 CHC. Additionally, utilizing response surface methodology (RSM), the design parameters were optimized. The outputs of the current study were then verified by comparing the outcomes of statistical-based RSM and FEM examinations. As a result, the structural weights for both designs were compared with steel hydraulic cylinders of the same strength, and it was revealed that Type 1 and Type 2 CHCs were 53.78% and 38.42% lighter than steel ones, respectively. In addition, the advantages and disadvantages of the design types were discussed, and thus the optimum design was determined by considering the application areas and requirements.

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Design and experimental tests on hydraulic actuator made of composite material

Cited by 31 publications

References 10 publications

Feasibility Analysis of a Double-Acting Composite Cylinder in High-Pressure Loading Conditions for Fluid Power Applications

Feasibility Analysis of a Double-Acting Composite Cylinder in High-Pressure Loading Conditions for Fluid Power Applications

Design of the composite hydraulic cylinder with geodesic dome trajectory: A numerical study

Comparison of mechanical properties of the Type 1 and Type 2 composite hydraulic cylinder designs: A numerical study

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