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RISEffective In-Plane Elastic Modulus of a Periodic Regular Hexagonal Honeycomb Core with Thick Walls
Publisher: American Society of Civil Engineers
Abstract: The effective in-plane elastic moduli of different types of honeycomb cores with thick walls are studied using analytical and numerical approaches. Analytical equations derived in this paper take a proposed jointed rectangle ...
Performance Investigation of a Constant Temperature Heat Pump Dryer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat pump drying systems (HPDS) are systems composed of a heat pump (HP) that carries out a drying process which is energy efficient and environmentally friendly. However, in the HPDS, HP technology is used in the drying ...
Active Control of an Active Magnetic Bearings Supported Spindle for Chatter Suppression in Milling Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In machining process, chatter is an unstable dynamic phenomenon which causes overcut and quick tool wear, etc. To avoid chatter, traditional methods aim to optimize machining parameters. But they have inherent disadvantage ...
Tool Orientation Planning in Milling With Process Dynamic Constraints: A Minimax Optimization Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In five-axis milling process, the tool path generated by a commercial software seldom takes the dynamics of the machining process into account. The neglect of process dynamics may lead to milling chatter, which causes ...
Derived Nodes Approach for Improving Accuracy of Machining Stability Prediction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Machining process dynamics can be described by state-space delayed differential equations (DDEs). To numerically predict the process stability, diverse piecewise polynomial interpolation is often utilized to discretize the ...
Robust Active Chatter Control in Milling Processes With Variable Pitch Cutters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Milling chatters caused by the regenerative effect is one of the major limitations in increasing the machining efficiency and accuracy of milling operations. This paper studies robust active chatter control for milling ...
An Explicit Coupling Model for Accurate Prediction of Force-Induced Deflection in Thin-Walled Workpiece Milling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cutting force-induced vibrations in thin-walled parts milling may cause violation of dimensional tolerance while accurate modeling of the milling error distribution is still a challenging work because of the coupling effect ...
Active Chatter Suppression in Low Immersion Intermittent Milling Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Chatter in low immersion milling behaves differently from that in full immersion milling, mainly because of the non-negligible time-variant dynamics and the occurrence of period doubling bifurcation. The intermittent and ...
Minimax Optimization Strategy for Process Parameters Planning: Toward Interference-Free Between Tool and Flexible Workpiece in Milling Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In milling of flexible workpieces, like axial-flow compressor impellers with thin-wall blades and deep channels, interference occurrence between workpiece and tool shaft is a great adverse issue. Even though interference ...