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Systematic study of the prediction methods for machined surface topography and form error during milling process with flat-end cutter
期刊论文
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2019, 卷号: 233, 页码: 226-242
作者:
Zhang, Xing
;
Zhang, Wei
;
Zhang, Jun
;
Pang, Bo
;
Zhao, Wanhua
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2019/11/19
Axial depth of cut
Calculation accuracy
Cutter runout
Form errors
Machined surface topography
Milling process
Modal characteristics
Time-domain simulations
Precise Point Set Registration Using Point-to-Plane Distance and Correntropy for LiDAR Based Localization
会议论文
作者:
Xu, Guanglin
;
Du, Shaoyi
;
Cui, DIxiao
;
Zhang, Sirui
;
Chen, Badong
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2019/11/19
Automated vehicles
Closed form solutions
Iterative algorithm
Localization accuracy
Non-Gaussian noise
Point-set registrations
Time consumption
Transformation parameters
Surface quality characterisation of diamond cut V-groove structures made of rapidly solidified aluminium RSA-905
期刊论文
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY, 2018, 卷号: 53, 页码: 120-133
作者:
Guo, Jiang
;
Zhang, Jiong
;
Wang, Hao
;
Liu, Kui
;
Kumar, A. Senthil
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2019/12/02
Ultra-precision machining
V-groove
Rapidly solidified aluminium
Diamond cutting
Surface quality
Form accuracy
Efficient closed-form estimator for joint elliptic and hyperbolic localisation in multistatic system
期刊论文
ELECTRONICS LETTERS, 2018, 卷号: 54, 页码: 525-526
作者:
Qin, Zhaotao
;
Wei, Shaoming
;
Wang, Jun
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2019/12/30
time-of-arrival estimation
direction-of-arrival estimation
least squares approximations
maximum likelihood estimation
simulation results
Cramer-Rao lower bound accuracy
Gaussian measurement noise
acoustic array system
efficient closed-form estimator
joint elliptic localisation
hyperbolic localisation
multistatic system
target localisation problem
BR
time difference
arrival measurements
TDOA
multistatic localisation system
ellipse
hyperbola
target resides
quadratic c
Ultra-precision finishing of optical mold by magnetorheological polishing using a cylindrical permanent magnet
期刊论文
International Journal of Advanced Manufacturing Technology, 2018, 卷号: 97, 期号: 9-12, 页码: 3583-3594
作者:
Wang, Yongqiang*
;
Yin, Shaohui
;
Hu, Tian
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  |  
浏览/下载:3/0
  |  
提交时间:2019/12/27
Magnetorhelogical polishing
Optical mold
Spatial frequency error
Removal
Roughness
Form accuracy
Relationship between elliptical form error and rotation accuracy of hydrostatic journal bearing
期刊论文
INDUSTRIAL LUBRICATION AND TRIBOLOGY, 2017, 卷号: 69, 页码: 905-911
作者:
Zha, Jun
;
Chen, Yaolong
;
Zhang, Penghai
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  |  
浏览/下载:2/0
  |  
提交时间:2019/11/26
Hydrostatic journal bearing
Rotation accuracy
Precision design
Form error
Application of laser displacement sensor to free-form surface measurement
期刊论文
Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2015, 卷号: 23, 期号: [db:dc_citation_issue], 页码: 1939-1947
作者:
Li, Bing
;
Sun, Bin
;
Chen, Lei
;
Wei, Xiang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2019/12/02
Application of laser
Free-form surface
Geometric relationships
Laser displacement sensors
Laser interferometer
Measurement accuracy
Noncontact measurements
Quantization errors
A New Ultra-Precision Grinding Method for Manufacturing the Wavy-Tilt-Dam Mechanical Face Seals
期刊论文
TRIBOLOGY TRANSACTIONS, 2013, 卷号: 56, 页码: 65-74
作者:
Huo, Fengwei
;
Guo, Dongming
;
Feng, Guang
;
Kang, Renke
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2019/12/11
Mechanical Seal
Wavy-Tilted Surface
Sealing Dam
Ultra-Precision Grinding
Cup Wheel
Form Accuracy
Surface Roughness
Study of horizontal shafting with spherical four-way structure (EI CONFERENCE)
会议论文
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
Yang L.
收藏
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浏览/下载:20/0
  |  
提交时间:2013/03/25
Altazimuth photoelectric theodolite level shaft U-type and T-type structure
but with the expanding field of applications of photoelectric theodolite
the horizontal shaft structure occur great changes. For example
in the marine environment
shipboard conditions
the instrument has a waterproof
corrosion-resistant
easy maintenance and other functions
while carrier-based optoelectronic devices from a single visible television configure the development of integrated infrared system and ranging system as one of the single-station measurement system
due to the spherical structure has sufficient internal space exactly adapted to this need. In this paper
the horizontal axis of a spherical four-way structure. From aspects of the spherical four-way split in the form and shafting design and finite element analysis of the detailed design. A spherical four-way horizontal axis system
diameter 550mm
weight 19kg sphere
in the 40kg load
the maximum deformation of 3.3m
fully meet the requirements. The shaft of the structure of the shaking is less than 2 arc seconds
the vibration test
the re-examination instrument accuracy change is less than 1 arc seconds. Verify that the structure is stable and reliable. 2012 IEEE.
Technology on fabrication of precise SiC aspherical mirror (EI CONFERENCE)
会议论文
2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, October 28, 2011 - October 30, 2011, Chengdu, China
Zhang Z.
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浏览/下载:22/0
  |  
提交时间:2013/03/25
This paper represents a technique to produce the large size optical aspherical mirror by using reaction-bonded silicon carbide to meet the material requirements of the space used mirrors
based on the characters comparison of all types mirror material. Techniques are described in this paper
including the bonding procedure of silicon carbide to form a mirror shape
the CCOM technology for aspheric grinding
polishing on a home-developed tool -FSGJ-2
and the aspheric profilometry. A specialized Offner Null lens is also developed to measure the aspherical mirror with laser interferometer. With the technology depicted in the paper
a 502mm 298 mm off-axis SiC aspherical mirror is successfully made with a surface accuracy better than 1/50rms
the final result meets the design requirement. (2011) Trans Tech Publications.
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