Results 81 to 90 of about 1,083,308 (333)
Advanced Science, EarlyView.A predictive model for 3D printability is developed by integrating rheological analysis, including the Large Amplitude Oscillatory Shear (LAOS) test, with machine learning. With prediction errors under 10%, the model shows that post‐extrusion recovery controls horizontal printability, while high‐strain‐rate nozzle flow dictates vertical printability ...
Eun Hui Jeong +7 more
wiley +1 more source
Analysis of Torsional Vibration Characteristics of PDC Bit and Design of the Damping Tool
Shiyou jixie, 2017 In order to suppress the torsional vibration of the PDC bit, the torsion model of PDC bit was established.The force on the PDC cutter during rock breaking was analyzed to attain the relationship between WOB and torque.
Zha Chunqing +4 more
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Jixie chuandong, 2021 The vibration-based methods have been widely used in the tooth root crack fault diagnosis of planetary gearbox. Compared with traditional transverse vibration signal，torsional vibration signal is not affected by the modulation of time-varying ...
Wei Wei, Yunpeng Li, Yanshuai Yang
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Journal of Low Frequency Noise, Vibration and Active Control, 2020 In order to realize the rapid response control for turboshaft engine during the process of variable rotor speed, the linear quadratic Gaussian with loop transfer recovery (LQG/LTR) control method for turboshaft engine based on torsional vibration ...
Yong Wang +3 more
doaj +1 more source
Robotic Materials With Bioinspired Microstructures for High Sensitivity and Fast Actuation
Advanced Science, EarlyView.In the review paper, design rationale and approaches for bioinspired sensors and actuators in robotics applications are presented. These bioinspired microstructure strategies implemented in both can improve the performance in several ways. Also, recent ideas and innovations that embed robotic materials with logic and computation with it are part of the
Sakshi Sakshi +4 more
wiley +1 more source
Advances in Mechanical Engineering, 2018 In present, the drilling industry have to face the reality of low oil and gas prices, fully mechanical vertical drilling tool is likely to become the best choice for vertical drilling in the future.
Lixin Li +4 more
doaj +1 more source
Breakdown of the mirror image symmetry in the optical absorption/emission spectra of oligo(para-phenylene)s [PDF]
, 2005 The absorption and emission spectra of most luminescent, pi-conjugated, organic molecules are the mirror image of each other. In some cases, however, this symmetry is severely broken.
Andrew C. Grimsdale +9 more
core +3 more sources
Advanced Science, EarlyView.By engaging in different active exploration behaviors, the tactile perception system can generate distinct signal modes, enabling the application of targeted decoding strategies for efficient and accurate perception of both external and internal object features.
Yuanzhi Zhou +8 more
wiley +1 more source
Shock and VibrationThe diversity of vibration excitation sources and working modes in hybrid electric vehicles makes the problem of torsional vibration in the powertrain more prominent.
Zhiyong Wen +5 more
doaj +1 more source
Vibration characteristics of 1/8-scale dynamic models of the space-shuttle solid-rocket boosters [PDF]
Vibration tests and analyses of six 1/8 scale models of the space shuttle solid rocket boosters are reported. Natural vibration frequencies and mode shapes were obtained for these aluminum shell models having internal solid fuel configurations ...
Barret, J. R. +4 more
core +1 more source