Towards a structural efficiency classification system

Mena, Quisco

doi:10.1016/j.istruc.2020.04.012

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…Structural efficiency is an evaluation method to quantify the overall performance benefits of various structural improvement designs on parts. Combining with the corresponding evaluation objects, the corresponding connotation is proposed, which is widely used in the aviation industry and building structure (Ylvinger, 2000;Mena, 2020), but it is not involved in aviation heavy fuel piston engines (Scaramozzino et al, 2020;Hunt et al, 2019). Hong proposed a quantitative structural efficiency evaluation method, which realized the parametric method to evaluate the quality of structural design (Hong et al, 2020) .…”

Section: Introductionmentioning

confidence: 99%

Structural efficiency of block for aviation piston heavy fuel engine

Pan

Yang

2022

AEAT

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Purpose High reliability and high power-to-weight ratio are the technical difficulties in the development of aviation piston heavy fuel engines. This paper aims to provide a design evaluation method of the aero piston engine block, which can help R&D personnel quickly evaluate the performance of engine block, including effective bearing capacity and fatigue deformation, save a lot of experimental time and shorten the R&D cycle. Design/methodology/approach In this paper, structural efficiency is used to evaluate the reliability and durability of the engine block. Structural efficiency is a new evaluation method that lists its corresponding connotation according to different objects. In this paper, the function of the engine block in the engine is explained in detail, and three quantifiable connotations of the structural efficiency of the engine block are put forward. In the subsequent calculation, the calculation is carried out according to the three indexes, and the calculation results are used as the indexes to evaluate the performance of the engine block. Findings The structural efficiency evaluation method proposed in this paper can quickly and effectively evaluate the performance of the block from many aspects. Under the same boundary conditions, the two design schemes are simulated and analyzed, and the durability test is carried out. The analysis and experimental results show that Scheme 2 has good performance, which verifies the feasibility of the evaluation method. Originality/value This paper provides a method for rapid evaluation of engine block performance.

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Section: Introductionmentioning

confidence: 99%

Structural efficiency of block for aviation piston heavy fuel engine

Pan

Yang

2022

AEAT

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“…Structural efficiency can be defined in many ways [ 22 ] but is usually the value of the load supported by material to its weight. Several researches have used this term for analyzing the performance of different materials [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of The Segregation Phenomenon on Structural Efficiency of Lightweight Aggregate Concretes

2020

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Lightweight aggregate concretes (LWAC) are versatile and interesting materials for projects that require greater structural efficiency. Due to the difference that exists between the densities of the materials used in these types of concrete, during transport and mainly compaction, their aggregates tend to separate from the mortar matrix, floating towards the surface, a phenomenon called segregation. Segregation in LWAC can affect its durability properties, its density, and directly affect its structural efficiency. In this work, different concrete densities (1700 kg/m3 and 1900 kg/m3) manufactured with different dosages (two different lightweight aggregates) and compaction methods (one or two layers) were analyzed to verify the impact of segregation on its structural efficiency. For this purpose, the segregation index of the LWAC was obtained by means of the image analysis technique. In addition, to obtain their structural efficiency, the density and compressive strength were obtained at different heights of the tested specimens. The results show the vibration of the samples in two layers leads to a more efficient elimination of trapped air, a reduction in the risk of segregation, and better structural efficiency.

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Towards a structural efficiency classification system

Cited by 2 publications

References 13 publications

Structural efficiency of block for aviation piston heavy fuel engine

Structural efficiency of block for aviation piston heavy fuel engine

Influence of The Segregation Phenomenon on Structural Efficiency of Lightweight Aggregate Concretes

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