Supported by National Natural Science Foundation of China(Grant No.52475494);Zhejiang Provincial Natural Science Foundation of China(Grant No.LY22E050003);Fundamental Research Funds for the Provincial Universities of Zhejiang(Grant No.RF-A2020005).
In the machining of high-end optical components,the aerostatic spindle error of an ultra-precision machine tool has a significant impact on the surface quality of the machined surfaces.The surfaces of many high-end op...
Supported by Major Projects in Aviation Engines and Gas Turbines(Grant No.J2019-IV-0001-0068).
Space exploration has become a major focus in the field of technology,with gear transmissions in aerospace equipment playing a crucial role.In the extreme environment of space,gear transmissions face challenges like l...
Supported by National Natural Science Foundation of China(Grant Nos.52075142 and U22B2084).
The current research on noncircular hobbing mainly focuses on the linkage model and motion realization.However,the intermittent cutting characteristics of hobbing would increase uncertainties in the manufacturing proc...
Supported by National Science and Technology Major Project of China(Grant No.2015ZX04005001);Tianjin Provincial Nature Science Foundation of China(Grant No.16JCZDJC38400)
By studying the e ects of geometric precision on kinematic accuracy, an error mapping model has been established, based on the hypothesis that a motion pair and its installation surface are rigid. However, when using ...
Supported by National Natural Science Foundation of China(Grant No.51435006)
Although there are some multi-sensor methods for measuring the straightness and tilt errors of a linear slideway, they need to be further improved in some aspects, such as suppressing measurement noise and reducing pr...
supported by Japan Society for the Promotion and Science (JSPS)
This paper proposes a new method for measurement of the roll error motion of a slide table in a precision linear slide. The proposed method utilizes a pair of clinometers in the production process of a precision linea...
Supported by National Natural Science Foundation of China(Grant Nos.51635002(Key Program),51605011,51275015)
Joint clearances in antenna pointing mechanisms lead to uncertainty in function deviation. Current studies mainly focus on radial clearance of revolute joints, while axial clearance has rarely been taken into consider...
Supported by Key Project of National Natural Science Foundation of China(Grant No.51535009);111 Project(Grant No.B13044)
Time?varying mesh stiffness(TVMS) and gear errors include short?term and long?term components are the two main internal dynamic excitations for gear transmission. The coupling relationship between the two factors is u...
Supported by Zhejiang Provincial Natural Science Foundation of China(Grant No.LQ16E050012);National Natural Science Foundation of China(Grant Nos.51705462 and 51275115);International Science and Technology Cooperation Program of China(Grant No.2015DFA70630)
Ultra-precision machine tool is the most important physical tool to machining the workpiece with the frequency domain error requirement, in the design process of which the dynamic accuracy design(DAD) is indispensable...
Supported by National Natural Science Foundation of China(Grant No.51205027);University Youth Fund of Beijing Wuzi University
Stress, strain and vibration characteristics of rotor parts should be changed significantly under high acceleration, manufacturing error is one of the most important reason. However, current research on this prob- lem...