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In the study, the linear least-squares error method
isadopted to analyze the three-dimensional inverse heat
transferproblems in a grinding process. In the calculation
process, twomethods of iterations are developed to solve the
non-linearinverse problems and decrease the needful memory of
computer. The numerical method can solve the inverse problems
with onlythe temperature information on finite number of
locations beneaththe working surface at certain time domain is
required. At thebeginning of the study, finite-difference method
is employed todiscretize the problem domain into two parts of
direct andsensitivity problems, and then to construct a linear
inversemodel for unknown condition estimation. The results show
thatthe heat distribution and heat convection coefficients can
beobtained by the proposed method even under the influence
ofmeasurement errors. The analysis of the temperature and
heatdistribution of the workpiece help prevent the thermal
damageto the workpiece from occurring due to the high
temperatureduring grinding process.
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