Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
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Geometric accuracy allocation for multi-axis CNC machine tools based on sensitivity analysis and reliability theory
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 229 Số 6 - Trang 1134-1149 - 2015
Machining accuracy of a machine tool is influenced by geometric errors produced
by each part and component. Different errors have varying influence on the
machining accuracy of a tool. The aim of this study is to optimize errors to get
a desired performance for a numerical control machine tool. Applying multi-body
system theory, a volumetric error model was constructed to track and compensate
effe...
Volumetric Error Modelling, Measurement, and Compensation for an Integrated Measurement-Processing Machine Tool
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 224 Số 11 - Trang 2477-2486 - 2010
The volumetric error of a measurement-processing integrated machine tool was
studied by using a complicated surface workpiece grinding machine as a special
example. The model of volumetric error was established by using homogeneous
transformation matrices, and the effect of volumetric error on coordinate
transformation between the measurement and the processing work station was
analysed. Various e...
Finite element analysis of a cylindrical approach for shrink-fit precision gear forging dies
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 217 Số 6 - Trang 677-685 - 2003
The design of shrink-fit precision gear forging dies based on strength
considerations using an analytical (thick-wall cylinders) approach and the
finite element method are compared. While the two methods, analytical and finite
element, agree well for the dies with no irregularities (gear teeth), the finite
element method predicts much higher stress values than those of the analytical
approach for ...
The effects of shear deformation on the free vibration of elastic beams with general boundary conditions
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 224 Số 1 - Trang 71-84 - 2010
Free vibration characteristics of shear deformable elastic beams subjected to
different sets of boundary conditions are investigated. The analysis is based on
a unified one-dimensional shear deformation beam theory. The governing equations
of the elastic beams are obtained by means of Hamilton's principle. Four
different boundary conditions are considered. The natural frequencies and mode
shapes a...
A theoretical model for the contact of elastoplastic bodies
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 216 Số 4 - Trang 421-431 - 2001
The paper presents a theoretical model for the normal contact of a rigid sphere
with an elastic-perfectly plastic half-space or an elastic-perfectly plastic
sphere with a rigid wall. Formulae describing the force-displacement
relationship for static contact problems and the coefficient of restitution for
dynamic impact problems are derived. The present model can be considered as a
modification of ...
Tribology of the ring—bore conjunction subject to a mixed regime of lubrication
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 223 Số 4 - Trang 987-998 - 2009
This paper provides a detailed analysis of the compression ring—bore/liner
conjunction. The analysis includes ring—bore conformability and global in-plane
deformation of ring fitted in situ. The analysis for fitted ring in an
out-of-round bore shows very good agreement with precise measurements, using a
coordinate measuring machine. The analysis also includes the lubricated
conjunction under a tra...
The role of vibration and pass number on microstructure and mechanical properties of AZ91/SiC composite layer during friction stir processing
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 236 Số 5 - Trang 2312-2326 - 2022
In this study, nano-sized SiC particles are added to AZ91 magnesium alloy using
friction stir processing (FSP) and friction stir vibration processing (FSVP) to
produce surface nano-composite layers. FSVP is a modified method of FSP in which
the specimen is vibrated during FSP. The influence of FSP and FSVP pass numbers
on mechanical and microstructural behaviors of the developed surfaces is
invest...
Benchmark numerical solutions for two-dimensional fluid–structure interaction involving large displacements with the deforming-spatial-domain/stabilized space–time and immersed boundary–lattice Boltzmann methods
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 232 Số 14 - Trang 2500-2514 - 2018
Body-fitted and Cartesian grid methods are two typical types of numerical
approaches used for modelling fluid–structure interaction problems. Despite
their extensive applications, there is a lack of comparing the performance of
these two types of approaches. In order to do this, the present paper presents
benchmark numerical solutions for two two-dimensional fluid–structure
interaction problems: f...
Experimental and Numerical Investigations on the Air-Pumping Phenomenon in High-Speed Spur and Helical Gears
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 219 Số 8 - Trang 785-800 - 2005
An approximate hydrodynamic model of the air-lubricant pumping by spur and
helical gears, which makes it possible to predict the compression-expansion
process by the meshing teeth, is presented. The simulated pressure patterns
correlate well with the experimental evidence obtained from a specific test rig
for both spur and helical gears. Finally, it is shown that this pumping
phenomenon can genera...
A review on assembly sequence generation and its automation
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science - Tập 230 Số 5 - Trang 824-838 - 2016
Sequence of feasible mechanical assembly operations plays significant role in
overall cost optimisation process for manufacturing industry and thus great
importance is given to assembly sequence generation from past four decades.
Though achieving at least one feasible sequence is focused in the earlier stages
of research, the introduction of soft computing techniques attracted the
industrial engin...
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