Zhang Chen

Professor Supervisor of Doctorate Candidates

Gender:Male

Alma Mater:南京航空航天大学

Education Level:南京航空航天大学

Degree:Doctoral Degree in Engineering

School/Department:College of Mechanical and Electrical Engineering

Discipline:Mechanical Manufacture and Automation. Other specialties in Mechanical Engineering. Aeronautical and Astronautical Manufacturing Engineering

Business Address:明故宫校区 15-215

Contact Information:13813086703

E-Mail:

Paper Publications

Design and kinematic analysis of a novel decoupled 3D ultrasonic elliptical vibration assisted cutting mechanism

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Affiliation of Author(s):机电学院

Journal:Ultrasonics

Abstract:The 3D elliptical vibration-assisted cutting (EVC) mechanism with arbitrary elliptical locus in space has a wide array of industrial applications for generating micro/nano-structured surface. However, the current 3D EVC mechanism are limited by their motion couplings, resonant frequencies and regulation of arbitrary elliptical locus. In order to improve the output properties, an innovative decoupled 3D ultrasonic EVC mechanism is proposed in the form of compliant parallel mechanism. First, the proposed 3D ultrasonic EVC mechanism is specifically designed to be capable of generating uniformly magnified output displacement in three directions and its 3D elliptical locus is obtained by the designed multi-axis flexure hinge structure with three orthogonal sub chains. Design process of multi-axis flexure hinge structure is respectively described from displacement amplification and decoupling output. The kinematics and amplification ratios of the designed 3D EVC mechanism are analytically modeled and a finite element analysis is performed to validate the designed 3D EVC mechanism. Based on the analysis results, a prototype device is fabricated, and then its vibration characteristics are evaluated by using the established test system. The test experiments show that the performance of the developed 3D ultrasonic EVC mechanism is satisfied. © 2019 Elsevier B.V.

ISSN No.:0041-624X

Translation or Not:no

Date of Publication:2019-05-01

Co-author:Song, Yun

Correspondence Author:Zhang Chen

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Profile

Chen Zhang is currently a professor of Nanjing University of Aeronautics and Astronautics, situated in China, where he teaches software engineering, CAD technology and application, and principle and application of micro-computer. He has received his Ph.D. degree from the University of Nanjing University of Aeronautics and Astronautics in 2006.

Professor Chen Zhang has been working in the fields of ultrasonic vibration-assisted machining, micro/nano machining , machining process simulation, tool wear modeling and monitoring based on machining vision since 2006 when he became a faculty member at university. He holds more than 20 patents and published more than 40 papers. He won two provincial and ministerial level two awards and is a member of International Institution for Micromanufacturing and Chinese Society of Aeronautics and Astronautics.