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Cavitation Diagnostics Based on Self-Tuning VMD for Fluid Machinery with Low-SNR Conditions
Variational mode decomposition (VMD) is a suitable tool for processing cavitation-induced vibration signals and is greatly affected by two...
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Recent advances in correlation and integration between vibration control, energy harvesting and monitoring
Traditional structures adopt a split design with vibration control, energy harvesting and monitoring, which is difficult to meet the needs of...
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Using Multicriterion Optimization Methods to Optimize the 3D Shape of Axial Compressor
The article presents one optimization method for improving of the working process of an axial compressor of gas turbine engine. Developed method...
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A dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system for high-performance wind energy harvesting
Wind-induced vibration energy harvesting has a great potential for utilizing wind energy to supply power for low-powered devices. To improve the...
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Annular seal rotordynamic stability enhancement with circumferential spiral flow control using helical deflectors
Rotordynamic instability problem caused by seal force widely exists in turbo-machines. The fluid-induced force in the seal is determined by the...
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Energy consumption modelling in milling of variable curved geometry
The accurate estimation of energy consumption is beneficial to manufacturing enterprises economically as well as to overcome global energy crisis....
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A Balance Controller of the Humanoid Robot Based on Momentum Under External Impact
Humanoid robot can generate not only extra linear momentum but also angular momentum when suffering external force. This paper presents a...
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Flow behavior dependence of rod shearing phenomena of various materials in automatic multi-stage cold forging
Strain hardening, elongation, and shearing speed effects of flow behaviors on coil-rod shearing during automatic multi-stage cold forging (AMSCF) are...
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A Nonlinear Lateral-Torsional Coupling Dynamic Model of Planetary Transmission and Verification with Experiment
A nonlinear lateral-torsional coupling dynamic model of planetary transmission is established in which the nonlinear factors such as mass...
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Investigation on operational stability of main shaft of a prototype reversible pump turbine in generating mode based on ensemble empirical mode decomposition and permutation entropy
Evaluation of the operational stability of the main shaft is of great significance to ensure the security and reliability of the prototype reversible...
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Modeling and vibration characteristics analysis of a DMF rotor system
To analyze the vibration response of a rotor system with circumferential short spring dual mass flywheel (DMF) when the primary flywheel speed...
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Energy efficiency onboard hydraulic power for quadruped robot based on high-low double pumps supply
This work presents a high energy efficiency onboard hydraulic system for quadruped robot. Firstly, based on the rhythmic motion and mechanical...
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Pump Types and Performance Data
Centrifugal pumps are used for transporting liquids by raising a specified volume flow to a specified pressure level. Pump performance at a given...
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Time-marching throughflow model for predicting axial turbine performances
A time-marching throughflow solver is applied to the off-design performance prediction of axial turbine. The method solves strictly conservative...
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Numerical research on near stall characteristics of a transonic axial compressor based on wavelet analysis
An axial single-stage high-speed test rig is numerically studied in this paper with half-annulus URANS simulations to describe the flow...
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Microvibration isolation in sensitive payloads: methodology and design
Microvibration is a severe issue that is present in many components on spacecraft, such as cryocoolers, thrusters, solar arrays, and...
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Rotor Dynamics and Stability of the Centrifugal Pump CPN 600-35 for Nuclear Power Plants
The paper ensures the vibration reliability of the centrifugal pump CPN 600-35 for the water supply of an industrial circuit at nuclear power plants...
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Fire for work
The vocabulary of a fire consists of flames that can be perceived by the human eyes as red, yellow or blue, depending on the intensity and frequency...
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Techno-Economic Feasibility of Organic Rankine Cycles (ORC) for Waste Heat Recovery
The increase in global mean surface temperature and growing industrial competitiveness stress implementing waste heat recovery (WHR) systems, such as...
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Design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth rover BJTUBOT
Earth rover is a class of emerging wheeled-leg robots for nature exploration. At present, few methods for these robots’ leg design utilize a...
