Pengzhi Li

ORCID: 0000-0003-2944-9453
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About
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Research Areas
  • Piezoelectric Actuators and Control
  • Luminescence Properties of Advanced Materials
  • Perovskite Materials and Applications
  • Iterative Learning Control Systems
  • Polymer composites and self-healing
  • Aeroelasticity and Vibration Control
  • Polymer Foaming and Composites
  • Force Microscopy Techniques and Applications
  • Network Time Synchronization Technologies
  • Silicon Carbide Semiconductor Technologies
  • Advanced optical system design
  • Advanced Measurement and Metrology Techniques
  • Smart Grid Security and Resilience
  • Advanced Surface Polishing Techniques
  • Organic Light-Emitting Diodes Research
  • Advanced MEMS and NEMS Technologies
  • Polydiacetylene-based materials and applications
  • Quantum Dots Synthesis And Properties
  • HVDC Systems and Fault Protection
  • Magnetic Properties and Applications
  • Cardiac Structural Anomalies and Repair
  • Vacuum and Plasma Arcs
  • Conducting polymers and applications
  • Silicone and Siloxane Chemistry
  • Optical properties and cooling technologies in crystalline materials

State Grid Corporation of China (China)
2021-2024

Sichuan University
2009-2023

University of Gloucestershire
2020-2023

Geological Exploration Institute of Shandong Zhengyuan
2021

University of Manchester
2020

Changchun Institute of Optics, Fine Mechanics and Physics
2012-2019

Liuyang City Maternal and Child Health Hospital
2018

Center for Special Minimally Invasive and Robotic Surgery
2018

Robotic Technology (United States)
2018

Robotic Research (United States)
2018

Considering that environmental friendliness and energy conservation are becoming crucial, it is urgent to advance the sustainability of materials in terms their lifecycle, including synthesis, processing, application.

10.1039/d3ta00302g article EN Journal of Materials Chemistry A 2023-01-01

An environmentally friendly polyester vitrimer was prepared through an efficient one-pot method. The possesses advanced recyclability, foamability, creep resistance and self-healing performance.

10.1039/d2gc01320g article EN Green Chemistry 2022-01-01

In this paper, a novel Takagi-Sugeno (T-S) fuzzy-system-based model is proposed for hysteresis in piezoelectric actuators. The antecedent and consequent structures of the developed fuzzy (FHM) can be identified online through uniform partition approach recursive least squares (RLS) algorithm, respectively. With respect to controller design, inverse FHM used develop internal (FIM) controller. Decreasing effect, FIM has good performance high-speed trajectory tracking. To achieve...

10.1109/tfuzz.2015.2502282 article EN IEEE Transactions on Fuzzy Systems 2015-11-20

A six degree-of-freedom (6-DOF) parallel positioning system with high resolution, repeatability, and low parasitic motions was proposed. It mainly consists of three identical limbs. Each limb two symmetrical prismatic-universal-spherical branches. First, the design process for a novel 6-DOF input displacement reduction introduced. By applying bipods linear output mechanisms, these limbs symmetric configurations were designed. Moreover, numerical compliance/stiffness model proposed mechanism...

10.1109/tmech.2019.2931619 article EN IEEE/ASME Transactions on Mechatronics 2019-08-08

The precise pressure control in common rail will directly influence the performance of diesel engine, so it is very important to effectively. Because was nonlinear, time-variable and disturbed, difficult realize accurate with traditional methods. Conventional PID can not meet demand pressure, especially when engine load changes largely rapidly. In order improve high system, feed forward fuzzy controller has been designed; consists a combination control. According every condition, method...

10.1109/icmtma.2010.600 article EN International Conference on Measuring Technology and Mechatronics Automation 2010-03-01

The high resolution of lithography lenses has led to a requirement for high-precision lens-adjusting compensators. This paper presents the design, analysis, and testing two-degrees-of-freedom compliant mechanism be used lens XY micro-adjustment. monolithic mechanism, which is based on 1RR–2RRR configuration, uses flexure hinges connect movable inner ring with fixed outer ring. apparatus driven using two piezoelectric actuators, terminal displacement fed back in real time capacitive sensors....

10.1063/1.5141138 article EN Review of Scientific Instruments 2020-03-01

In this paper, based on the principles of general operational amplifiers, a high-voltage amplifier is developed. Considering influences piezoelectric stack actuators circuit, novel structure using as noninverting proposed. Because simple circuit and voltage feedback control structure, proposed power has advantages low noise small size, it can be realized by discrete electric elements easily. application precision positioning, for driving designed, simulated, tested. The simulated results...

10.3390/s20226528 article EN cc-by Sensors 2020-11-15

High laser absorption and strong resolution enhancement technology make thermal aberration control of lithography lenses more challenging. We present an active lens that uses four bellows actuators to generate astigmatism (Z5) on the surface. The apparatus utilizes optical path difference compensate system wavefront. In order assess specifications compensator, finite element method experimental analyses are carried out obtain validate general properties apparatus. results show Z5 deformation...

10.1364/ao.57.008654 article EN Applied Optics 2018-10-04

In this paper, a novel Takagi-Sugeno (T-S) fuzzy system based model is proposed for hysteresis in piezoelectric actuators. The antecedent and consequent structures of the (FHM) can be, respectively, identified on-line through uniform partition approach recursive least squares (RLS) algorithm. With respect to controller design, inverse FHM used develop feedforward cancel out effect. Then hybrid designed high-performance tracking. It combines with proportional integral differential (PID)...

10.1063/1.4748263 article EN Review of Scientific Instruments 2012-08-01
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