Lightweight design and static analysis of lattice compressor impeller

Zhang, Yuan; Li, Fanchun; Jia, Dejun

doi:10.1038/s41598-020-75330-z

Cited by 9 publications

(6 citation statements)

References 17 publications

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“…Scales (9) and tachometer (8) are provided to measure torque on the generator shaft (7) and its rotation speed. Working fluid after the turbine (6) enters the tank (12) through a liquid collecting device (11). Figure 2 shows the diagram of the laboratory test bench for pump micromodels.…”

Section: Methodsmentioning

confidence: 99%

“…The results of practical use of mesh channels are known in the development of lattice wings [3,4], heat exchangers [5][6][7], and ejectors for various purposes [8,9]. The maximum rigidity of the rotor structure is achieved with a minimum rotor mass using modern additive technologies [10][11][12]. Such technologies also made it possible to create complex compositions from metal and ceramic materials, which are difficult to obtain by other methods [13].…”

Section: Introductionmentioning

confidence: 99%

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Prototyping and Study of Mesh Turbomachinery Based on the Euler Turbine

et al. 2021

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This paper presents a scientific development aimed at improving the efficiency of turbomachines through the joint use of rotary-vane and vortex workflows. In the well-known Euler turbine, the rotor flow channels represent a set of curved pipes. The authors propose to consider in more detail the possibilities of using such rotating pipes in the implementation of an ejection (vortex) workflow. A hybrid pump was considered with the conclusion that its workflow can be described using two Euler equations. The results of computer simulation indicate that hybrid turbomachines are promising. The use of additive technology allowed the creation of micromodels of the Euler turbine with various rotor designs. Laboratory hydraulic tests showed that the liquid inlet to the rotor is possible in pulse mode. Laboratory tests of micromodels using compressed air showed that gas (or liquid) motion through curved pipes could be carried out from the rotor periphery to its center and then back, albeit through another curved pipe. The research results demonstrated that the scientific and technical potential of the Euler turbine is not yet fully unlocked, and research in this direction should continue. The study results are applicable in various industries including the energyeconomy, robotics, aviation, and water transport industries.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prototyping and Study of Mesh Turbomachinery Based on the Euler Turbine

et al. 2021

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“…Currently, mesh structures are studied mainly to reduce the product weight while maintaining their strength characteristics [40,41]. It can also be noted that with the use of advanced additive technologies, the maximum rigidity of the rotor design is achieved with a rotor minimum mass [42,43]. With the use of additive technologies, it has now also become possible to create complex compositions from metal and ceramic materials [44].…”

Section: Introductionmentioning

confidence: 99%

Designing Mesh Turbomachinery with the Development of Euler’s Ideas and Investigating Flow Distribution Characteristics

Sazonov

Mokhov²,

Gryaznova³

et al. 2022

Civ Eng J

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This research discusses developing an Euler turbine-based hybrid mesh turbomachinery. Within the framework of mechanical engineering science, turbomachinery classification and a novel method for mesh turbomachinery design were considered. In such a turbomachine, large blades are replaced by a set of smaller blades, which are interconnected to form flow channels in a mesh structure. Previous studies (and reasoning within the framework of inductive and deductive logic) showed that the jet mesh control system allows for operation with several flows simultaneously and provides a pulsed flow regime in flow channels. This provides new opportunities for expanding the control range and reducing the thermal load on the turbomachine blades. The novel method for performance evaluation was confirmed by the calculation: the possibility of implementing pulsed cooling of blades periodically washed by a hot working gas flow (at a temperature of 1000°C) and a cold gas flow (at a temperature of 20°C) was shown. The temperature of the blade walls remained 490–525°C. New results of ongoing research are focused on creating multi-mode turbomachinery that operates in complicated conditions, e.g., in offshore gas fields. Gas energy is lost and dissipated in the throttle at the mouth of each high-pressure well. Within the framework of ongoing research, the environmentally friendly net reservoir energy of high-pressure well gas should be rationally used for operating a booster compressor station. Here, the energy consumption from an external power source can be reduced by 50%, according to preliminary estimates. Doi: 10.28991/CEJ-2022-08-11-017 Full Text: PDF

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“…With the increasing demand for lightweight design of components in many industries and the continuous development of metal additive manufacturing technology, in recent years, lightweight structures including metal lattice structures have been widely used in aerospace, medical devices and other mechanical engineering related fields [1]- [15] .The application of lattice structure in lightweight design of parts can not only reduce the structural quality of components, but also adjust the geometric size and distribution of lattice structure in parts according to the specific design requirements, so as to change the equivalent elastic modulus and structural stiffness of components, so as to change the mechanical response of parts. In particular, in the field of aerospace, combined with additive manufacturing technology, the application of lattice in the lightweight design of aircraft structure and parts can greatly reduce the structural mass of aircraft and increase the effective carrying of aircraft [16]- [18] .…”

Section: Introductionmentioning

confidence: 99%

“…However, if the parallel array points are used in the lightweight design of this kind of revolution structure, when the axisymmetric load is applied, the stress and deformation of the structure will be uneven along the circumference. In this case, an obvious asymmetric deformation will occur in the structure, which makes the stress distribution more uneven [16]- [18] .…”

Section: Introductionmentioning

confidence: 99%

Influence of Geometric Parameters On Mechanical Response of Concentric Cylinders With Centrosymmetric Lattice

Jia

Liu

et al. 2021

Preprint

Self Cite

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A design method of centrosymmetric lattice structure is proposed. The centrosymmetric lattice is applied to the lightweight design of concentric cylindrical structures. Combining homogenization method and finite element method, the advantage of centrosymmetric lattice concentric cylinder in reducing the maximum stress is verified, and the stress distribution of centrosymmetric lattice concentric cylinder is more uniform along the circumference; two kinds of centrosymmetric lattice solids are selected, and the parametric method is used to study the influence of three parameters on the static response of a centrosymmetric lattice concentric cylinder under axisymmetric surface pressure.The results show that the maximum stress of the central symmetric concentric cylinder is less than that of the parallel array lattice cylinder under axisymmetric surface pressure;the stress distribution of the cylinder under axisymmetric load is periodic along the circumference, and the stress distribution of the concentric cylinder is more uniform than that of the parallel array lattice while the centrosymmetric lattice is applied to the lightweight design of concentric cylinder; the maximum stress increases with the increase of inside thickness and decreases with the increase of outside thickness; the increase of lattice section size will reduce the stress of outside and lattice of concentric cylinder, while the maximum stress of inside is less affected by the size of lattice section.

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Lightweight design and static analysis of lattice compressor impeller

Cited by 9 publications

References 17 publications

Prototyping and Study of Mesh Turbomachinery Based on the Euler Turbine

Prototyping and Study of Mesh Turbomachinery Based on the Euler Turbine

Designing Mesh Turbomachinery with the Development of Euler’s Ideas and Investigating Flow Distribution Characteristics

Influence of Geometric Parameters On Mechanical Response of Concentric Cylinders With Centrosymmetric Lattice

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