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Aerodynamic topology optimization on tip configurations of turbine blades

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (7)

The topology optimization (TopOpt) is adopted in this article to design tip geometries of a turbine blade. Its principle is to modify the porosity, wh......

Numerical investigation of boundary layer suction control positions on airfoils for vertical-axis wind turbine

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (7)

Flow separation is a common phenomenon on vertical-axis wind turbine (VAWT), delaying or restraining flow separation is very beneficial to improve the......

Numerical investigation of dual-fuel direct injection on RCCI combustion performance at low load condition

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (9)

A numerical study was performed to investigate the combustion characteristics of hydrogenated catalytic biodiesel (HCB)/gasoline reactivity controlled......

Electro-hydraulic coupling jet printing technology based on Weissenberg effect under pulse voltage

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (6)

In this paper, electro-hydraulic coupling jet printing technology based on the Weissenberg effect is put forward for the first time, and the pulse vol......

Type synthesis for lower-mobility decoupled parallel mechanism with redundant constraints

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (6)

A novel method for type synthesis of lower-mobility decoupled parallel mechanism with redundant constraints is proposed. Firstly, the definition of th......

Vision measurement of gear pitting based on DCGAN and U-Net

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (7)

To quantitatively detect the gear pitting, this paper proposes a vision measurement method based on deep convolutional generative adversarial network ......

Analysis on temperature field of friction pair of aviation friction clutch based on different groove shapes of friction disk

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (8)

To examine the influence of the groove shape of a friction disk on the transient temperature field in the engagement process of aviation wet friction ......

A contact model for electrical contact resistance between a rigid plane and a cylindrical surface

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (9)

Studies show that the formation of stable electrical contact between a graphite cylinder and a copper electrode is essential for generating a stable h......

Synergistic effect of micro-textures and MoS2 on the tribological properties of PTFE film against GCr15 bearing steel

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (5)

To enhance the friction and wear resistance of GCr15/PTFE sliding contact surfaces, the synergistic lubrication effect of micro-textures and solid lub......

Accuracy analysis and error compensation for Tricept machine tool under load

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (8)

This paper provides an efficient way to estimate the accuracy performance of the Tricept machine tool under load. Both joint clearances and link flexi......

The finite element analysis of machining characteristics of titanium alloy in ultrasonic vibration assisted machining

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (8)

Titanium alloy Ti6Al4V, an alpha-beta alloy, possesses many advantageous properties, such as high special strength, good resilience and resistance to ......

Artillery structural dynamic responses uncertain optimization based on robust Nash game method

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (9)

To coordinate the contradiction between artillery launching performance indexes under parameter uncertainty, this paper proposes an artillery structur......

Deployment simulation of membrane structures based on elastic-plastic behavior parameterization of the crease

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (5)

Aiming at the problem that the membrane structure is prone to creases in the process of folding and compaction, a proxy model is used to replace the c......

First-order approximate rigid-flexible coupled dynamics analysis of a simple aero-engine blade model with dynamic stiffening effect

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (7)

Aero-engine blades often fracture failed due to resonance. In order to analyze the vibration characteristics of high-speed rotating blades of aero-eng......

A parameter-adaptive ACMD method based on particle swarm optimization algorithm for rolling bearing fault diagnosis under variable speed

期刊: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021; 35 (5)

Fault diagnosis for rolling bearing under variable speed is always a challenging topic since the vibration signal has time-varying characteristics. To......

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