Research on Non-Similarity about Thermal Deformation Error of Mechanical Parts in High-accuracy Measurement

Zhang, Luo; Fei, Y T

doi:10.1088/1742-6596/48/1/008

Cited by 2 publications

(1 citation statement)

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“…In accordance with our recent research results, some mechanical parts and their original shape were not similar when their temperature changed. This dissimilarity might be related to the microstructure, geometrical error, and the machinery performance [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Optimum Design of the Precise Surface Plate Based on Thermal Deformation Experiment and FEA

Liu

Yuan

2013

Journal of Thermal Stresses

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During the precision measurement and machining process, the temperature may change the shape and dimension of the machine parts. This kind of thermal deformation will lead to a decrease in the measurement accuracy and machining accuracy, and it will even affect the normal performance of the machinery. A precise flat plate is usually used as a benchmarking tool. Its flatness will be changed when the environmental temperature deviates from the standard temperature 20 C, which will influence the plate benchmark accuracy and result in erroneous measurement. The thermal deformation of conventional type and well-ribbed type precise flat plates were analyzed in this research. The finite element analysis software ANSYS simulation results indicated that their thermal deformation was not equal along the surface. The stress in the center was lower and showed a concentric circle distribution, while the stress at four corners was higher. So a ring-ribbed type precise flat plate was designed, and its ANSYS simulation and experimental results revealed that the ring-ribbed type flat plate had better anti-thermal deformation behavior, and its flatness was changed less with the temperature. Based on our research, it is suggested that the ring-ribbed type precise flat plate should take precedence in designing datum plane.

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Section: Introductionmentioning

confidence: 99%

Optimum Design of the Precise Surface Plate Based on Thermal Deformation Experiment and FEA

Liu

Yuan

2013

Journal of Thermal Stresses

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On thermal calculation for helical gear transmission system

Gabroveanu

Cănănău

Mirica

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The purpose of the study in the paper is to evaluate the thermal comportment of the transmission systems with helical gears. Also, the influences of heat on characteristics of gear transmission system, based on the meshing thermal stiffness of gears are analyzed. An experimental testing stand of the system will be used to obtain data. The respond of the transmission under different working conditions is also analyzed. The study concerns the comparison of theoretical results obtained using calculation methods (from literature) and the experimental results, in order to obtain an evaluation of the friction in the meshing gears. The heat (temperature) affects the dynamic characteristics of the system by the meshing stiffness of the gear. The experimental results are used to verify the correctness of the theoretical model.

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Research on Non-Similarity about Thermal Deformation Error of Mechanical Parts in High-accuracy Measurement

Cited by 2 publications

References 0 publications

Optimum Design of the Precise Surface Plate Based on Thermal Deformation Experiment and FEA

Optimum Design of the Precise Surface Plate Based on Thermal Deformation Experiment and FEA

On thermal calculation for helical gear transmission system

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