13 Result(s)
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Article
Dynamic analysis of gear system with multiple lubrication states in torque–speed parameter space
The existence of backlash causes de-meshing and reverse impact in the gear system, and the influence of the working lubrication conditions of the gear on the dynamics is ignored. This study focused on the impa...
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Article
An adaptive matrix material extrusion optimization model for in situ impregnated continuous fiber-reinforced 3D printing
Microscopic porosity is an important cause of structural failure in 3D printing of continuous fiber reinforced polymer. To reduce the overfilling and underfilling caused during the fabrication of the molten fi...
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Article
Multi-robot Navigation with Graph Attention Neural Network and Hierarchical Motion Planning
In multi-robot navigation tasks, the interaction between a large number of robots in dynamic environments greatly affects the results of navigation. The interaction between the robots changes with environmenta...
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Article
A 3D printing tool-path generation strategy based on the partition of principal stress field for fused filament fabrication
In order to enhance the strength of 3D-printed parts made of polymer materials and reduce the anisotropy caused by the fused filament fabrication process, this paper proposes an inter-layer interleaved composi...
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Article
Nonlinear vibration and primary resonance analysis of non-orthogonal face gear-rotor-bearing system
The nonlinear dynamic model of the non-orthogonal face gear-rotor-bearing system was established considering the nonlinear features associated with time-varying meshing stiffness, transmission error, tooth bac...
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Article
Effects of heat accumulation on the characteristics of hole wall temperature and damages in drilling of UD CFRP
Application of carbon fiber reinforced plastic (CFRP) in aircraft load-carrying structure makes the component become thicker and damage tolerance get stricter. The heat accumulation highly increases the hole w...
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Article
A digital twin-based layout optimization method for discrete manufacturing workshop
In the discrete manufacturing workshop, an unreasonable workshop layout has a significant impact on the production efficiency, which can result in a large distance between operations, low utilization of toolin...
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Article
An intelligent CNC controller using cloud knowledge base
CNC machine tool plays a vital role in intelligent manufacturing, but up to now, CNC controller, which works as the “brain” of the machine tool, is just a loyal executor of machining command without intelligen...
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Article
Design and development of a CNC machining process knowledge base using cloud technology
Nowadays, computer numerical control (CNC) machine tool undertakes more processing tasks than other common machine tools because of its highly automated machining ability and high performance. However, due to ...
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Article
A CAD/CAE-integrated structural design framework for machine tools
In this paper, a novel integrated framework for design and optimization of a machine tool structure is presented, which can greatly improve the design quality and efficiency by combining knowledge-based design...
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Article
The research status and development trend of additive manufacturing technology
The paper first presents a brief review of development courses of additive manufacturing technology and summarizes the development status and the application fields of additive manufacturing technology, then, ...
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Article
Development of a new combined heat source model for welding based on a polynomial curve fit of the experimental fusion line
To improve the accuracy of finite element (FE) models used to simulate electric arc and beam-based fusion welding processes, a combined heat source model is proposed. The combined model, termed the polynomial ...
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Article
A new top-down design method for the stiffness of precision machine tools
This work describes a new top-down design method for the stiffness of precision machine tools that considers the entire machine stiffness to guarantee the stiffness requirements in the initial design stage. A ...
