11 Result(s)
within
Yimin Lu
Engineering
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Article
Vibration of an axially moving string with nonclassical boundary conditions subjected to harmonic excitation based on the method of multiple scales
This paper investigates the vibration of an axially moving string with symmetrical nonclassical boundary conditions subjected to harmonic excitation. Instead of conventional fixed boundary, the boundary is mod...
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Article
On vibration and passive control of axially translating string with dam** at both ends using reflected traveling wave superposition method
The axially translating string has received wide attention due to its adverse effect of transverse vibration on security and stability in engineering. Most of the current literature focuses on classical bounda...
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Article
Numerical investigations of enhanced shallow geothermal energy recovery using microencapsulated phase change materials and metal fins
The efficiency of shallow geothermal energy recovery has been constrained by both the short-term temperature anomaly around heat exchangers and the long-term ground heat depletion. This study presents numerica...
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Article
An optimization method for vibration suppression and energy dissipation of an axially moving string with hybrid nonclassical boundaries
The axially moving string model is widely used in engineering applications and is of great significance in research. To suppress transverse vibration and facilitate energy dissipation of the axially moving str...
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Article
Optimal control of multilevel boost converter via exact feedback linearization and decoupling
Multilevel boost converter is a multi-input multi-output nonlinear strongly coupled system. There is a coupling relationship between flying capacitor voltages and output voltage. In this paper, an optimal cont...
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Article
Primary side control method for constant voltage/current output of series-none compensated inductive wireless transfer systems
In practical applications, inductive wireless power transfer (IWPT) systems are often required to output a constant voltage or current. However, a change of the load often leads to a change of the output. This...
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Article
Inverse system optimal control of interleaved boost converters
When compared with the conventional boost converter, the interleaved boost converter (IBC) has the advantages of low current stress. Thus, they have been widely used in DC microgrids. However, the IBC is a mul...
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Article
Model predictive control of double-input buck converters
The control system of a multiple-input dc–dc converter should ensure the stability of output voltage and reasonably distribute the power of multiple-input voltage sources. In addition, there is mutual coupling...
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Article
Fuzzy self-tuning PID control of MC3 LLC resonant LED drivers
An MC3 LLC resonant light-emitting diode (LED) driver is a multi-channel constant current (MC3) output solution based on LLC resonance. Through an effective combination of multiple transformers and a DC block cap...
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Article
Research on Propagation Characteristics of Millimeter Wave in Tunnels
This paper analyzes the propagation characteristics of the millimeter wave in various circular section tunnels. The received power, path loss and delay spread are discussed in detail using the verified softwar...
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Article
Bifurcations and chaos in indirect field-oriented control of induction motors
Stability of indirect field-oriented control (IFOC) of induction motor drives is greatly influenced by estimated value of rotor time constant. By choosing estimation error of rotor time constant as bifurcation...
