26 Result(s)
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Engineering
Mechanical Engineering
Power Electronics, Electrical Machines and Networks
**fu Fu
Article
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Article
Open AccessImproved Differential Evolution with Shrinking Space Technique for Constrained Optimization
Most of the current evolutionary algorithms for constrained optimization algorithm are low computational efficiency. In order to improve efficiency, an improved differential evolution with shrinking space tech...
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Open AccessAsymmetric Fuzzy Control of a Positive and Negative Pneumatic Pressure Servo System
The pneumatic pressure control systems have been used in some fields. However, the researches on pneumatic pressure control mainly focus on constant pressure regulation. Poor dynamic characteristics and strong...
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Open AccessIntegrated Equipment Health Prognosis Considering Crack Initiation Time Uncertainty and Random Shock
With integrated equipment health prognosis, both physical models and condition monitoring data are utilized to achieve more accurate prediction of equipment remaining useful life (RUL). In this paper, an integ...
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Open AccessImpact of Impeller Stagger Angles on Pressure Fluctuation for a Double-Suction Centrifugal Pump
Pressure fluctuation may cause high amplitude of vibration of double-suction centrifugal pumps, but the impact of impeller stagger angles is still not well understood. In this paper, pressure fluctuation exper...
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Open AccessOptimization Study on Expansion Energy Used Air-Powered Vehicle with Pneumatic-Hydraulic Transmission
Pneumatic-hydraulic transmission has been developed for years. However, its dynamic properties are not good enough for application. In this paper, in order to increase the output characteristics, a late-model ...
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Open AccessEffect of Micro-Dimples on Hydrodynamic Lubrication of Textured Sinusoidal Roughness Surfaces
Surface texturing has been applied to improving the tribological performance of mechanical components for many years. Currently, the researches simulate the film pressure distribution of textured rough surface...
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Open AccessCar Fuel Economy Simulation Forecast Method Based on CVT Efficiencies Measured from Bench Test
Researchers face difficulties in studying the effects of driveline efficiency on car fuel economy via bench and road tests because of long working periods, high costs, and heavy workloads. To simplify the stud...
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Open AccessNumerical Analysis and Verification of the Gas Jet from Aircraft Engines Impacting a Jet Blast Deflector
The process of the gas jet from aircraft engines impacting a jet blast deflector is not only a complex fluid–solid coupling problem that is not easy to compute, but also a safety issue that seriously interfere...
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Open AccessInvestigation of Induced Unbalance Magnitude on Dynamic Characteristics of High-speed Turbocharger with Floating Ring Bearings
Due to operational wear and uneven carbon absorption in compressor and turbine wheels, the unbalance (me) vibration is induced and could lead to sub-synchronous vibration accidents for high-speed turbocharger (TC...
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Open AccessEffect of Ordering Policies on Complex Dynamics Behaviours in a Discrete-Type Manufacturing Industry Supply Chain System
The beer game model is a typical paradigm used to study complex dynamics behaviours in production–distribution systems. The model, however, does not accord with current practical supply chain system models in ...
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Open AccessA Model for Predicting Dynamic Cutting Forces in Sand Mould Milling with Orthogonal Cutting
Cutting force is one of the research hotspots in direct sand mould milling because the cutting force directly affects the machining quality and tool wear. Unlike metals, sand mould is a heterogeneous discrete ...
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Open AccessContact Model of Revolute Joint with Clearance Based on Fractal Theory
The contact stiffness of a mechanical bonding surface is an important parameter in determining the normal and radial contact force. To improve the calculation accuracy of the contact force model, the surface r...
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Open AccessTowards Energy Efficient Shape Rolling: Roll Pass Optimal Design and Case Studies
Shape rolling is widely employed in the production of long workpieces with appropriate cross-section profiles for other industrial applications. In the development of shape rolling systems, roll pass design (R...
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Open AccessDesign of Self-Reconfigurable Multiarm Robot Mechanism Based on Deployable Kinematic Chains
As the structures of multiarm robots are serially arranged, the packaging and transportation of these robots are often inconvenient. The ability of these robots to operate objects must also be improved. Addres...
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Open AccessResearch Status, Critical Technologies, and Development Trends of Hydraulic Pressure Pulsation Attenuator
Hydraulic pumps are a positive displacement pump whose working principle causes inherent output flow pulsation. Flow pulsation produces pressure pulsation when encountering liquid resistance. Pressure pulsatio...
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Open AccessEffects of Defocus Distance on Three-Beam Laser Internal Coaxial Wire Cladding
Three-beam laser internal coaxial wire feeding cladding is regarded as a promising additive manufacturing technique because it is highly efficient and controllable. In this study, the effects of the defocus di...
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Open AccessHeat Transfer Performance of a Novel Microchannel Embedded with Connected Grooves
To improve the heat transfer performance of microchannels, a novel microchannel embedded with connected grooves crossing two sidewalls and the bottom surface (type A) was designed. A comparative study of heat ...
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Open AccessApplication of Optimal-Jerk Trajectory Planning in Gait-balance Training Robot
To accommodate the gait and balance disorder of the elderly with age progression and the occurrence of various senile diseases, this paper proposes a novel gait balance training robot (G-Balance) based on a si...
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Open AccessWear Characteristics of the Nuclear Control Rod Drive Mechanism (CRDM) Movable Latch Serviced in High Temperature Water
The current research of nuclear control rod drive mechanism (CRDM) movable latch only makes a simple measurement of wear mass. The wear volume and difference in various claw surfaces are ignored and the degrad...
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Open AccessDigital Twin for Integration of Design-Manufacturing-Maintenance: An Overview
Traditional design, manufacturing and maintenance are run and managed independently under their own rules and regulations in an increasingly time-and-cost ineffective manner. A unified platform for efficient a...
