Synergy of Tribological Processes in Designing Combustion Engine Crankshaft Bearings

Vrublevskyi, Oleksandr; Grytsyuk, Oleksandr; Napiórkowski, Jerzy

doi:10.1115/1.4045629

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…The specific location of crankshaft fatigue failure, analyzed the causes of fatigue failure, and proposed improvement measures for crankshaft strength in the research. Vrublevskyi et al researched the friction performance of crankshaft and main bearing shell, and revealed the influence law of design parameters on frictional reliability 22 . An optimized design scheme to reduce friction and lubrication costs of the main bearing by optimizing the design parameters.…”

Section: Introductionmentioning

confidence: 99%

“…Vrublevskyi et al researched the friction performance of crankshaft and main bearing shell, and revealed the influence law of design parameters on frictional reliability. 22 An optimized design scheme to reduce friction and lubrication costs of the main bearing by optimizing the design parameters. Zhao et al took the stiffness of the main bearing shell as the main objective and demonstrated a design scheme to significantly improve the stiffness of the main bearing by optimizing the parameters of the main bearing assembly structure.…”

Section: Introductionmentioning

confidence: 99%

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A multilevel multiobjective coordination matching design technique for the main bearing assembly structure of a diesel engine

Zhao,

Shi,

et al. 2023

Energy Science & Engineering

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The main bearing assembly structure is one of the most important main load‐bearing structures of a diesel engine. The working loads of this structure increases dramatically with the increase of the power density of diesel engines, resulting in the problem of unsatisfactory reliability coordination design in restricted design space, while the mechanisms for coordinated design are still at the blank stage. Aiming at the problem, a multilevel multiobjective coordination matching design technique is innovatively proposed in this paper. This technique is characterized by a multilevel multiobjective coordination evaluation system for the assembly structure and its components based on the improved analytic hierarchy process. The finite element model and mathematical model of the main bearing assembly structure are established to realize the joint of finite element technology and optimization technology for coordination matching design. By carrying out verification experiments, the strength coordination, deformation coordination and contact strength coordination of the assembly structure increase by 13.91%, 14.96%, and 2.63%, respectively, after matching design, while the mass coordination remains almost constant meeting the lightweight design requirements. The overall coordination of the main bearing assembly structure is improved by 11.10%, achieving the goal of matching design of the main bearing assembly structure. The results show that the coordination evaluation system can quantitatively characterize the coordination relationship of the assembly structure and the multi‐reliability of components, and it is a feasible coordination evaluation method. The demonstrated coordination evaluation system and coordination matching design modeling approach provide important theoretical guidance for the matching design of complex assembly structures.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A multilevel multiobjective coordination matching design technique for the main bearing assembly structure of a diesel engine

Zhao,

Shi,

et al. 2023

Energy Science & Engineering

View full text Add to dashboard Cite

show abstract

“…The optimal design scheme was proposed. In addition, the friction performance of crankshaft, main bearing shell, and the influence law of design parameters on frictional reliability were demonstrated by Vrublevskyi et al 21 Since the design of the main loaded structure of an internal combustion engine is a problem with strongly coupled of multidisciplinary and multicomponent, containing a number of nonlinear situations, most of current research aim at the single response of the structure rather collaborative mechanism of responses based on multidisciplinary. Although the authors conducted the research of the coordination design for main loaded structures, the theoretical study of the response coordination mechanism has not yet been developed 22 …”

Section: Introductionmentioning

confidence: 99%

A response coordination design technology for the main loaded structures of the internal combustion engines based on NSEHO

Zhao,

Shi,

Liu

et al. 2023

Energy Science & Engineering

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Response coordination design becomes an inevitable trend based on the multidisciplinary optimization design (MOD) in the development of the design for complex mechanical structures. Aiming at the problem of unclear mechanism of response coordination for main loaded structures, a response coordination design technology characterized by a response coordination evaluation system is proposed based on an analytic hierarchy process. In addition, a nondominated sorting elephant herding optimization (NSEHO) algorithm is proposed by introducing the Pareto optimization theory into elephant herding optimization and combining fixed‐sized candidate set adaptive random testing algorithm to overcome inherent limitations of the traditional algorithm in response coordination design. Taking the main bearing assembly structure as an example, the response coordination design is conducted based on the proposed technology and NSEHO algorithm. The response coordination design scheme of the main bearing assembly structure is experimentally verified. The results show that the Pareto frontier of NSEHO is smoother and is closer to the real Pareto frontier compared to NSGA‐II in condition of small population size and restricted iteration generations, revealing the advancement of the solving ability of NSEHO. The coordination coefficients of strength, stiffness, contact strength, and mass of the main bearing assembly structure are increased by 13.91%, 14.96%, 2.63%, and 0.07%, respectively, and the overall coordination coefficient are increased by 11.10%. The indicators of strength, stiffness, and contact strength of the response coordination scheme are better than those of the original scheme by experimental verification, demonstrating the effectiveness of the response coordination design technology. The proposed technology reveals the response coordination mechanism of the main loaded structures of internal combustion engines and provides an important guiding significance to MOD for complex mechanical structures.

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Synergy of Tribological Processes in Designing Combustion Engine Crankshaft Bearings

Cited by 2 publications

References 14 publications

A multilevel multiobjective coordination matching design technique for the main bearing assembly structure of a diesel engine

A multilevel multiobjective coordination matching design technique for the main bearing assembly structure of a diesel engine

A response coordination design technology for the main loaded structures of the internal combustion engines based on NSEHO

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