Effect of Heat Load on a Mechanical Forging Press

Chval, Zdenek; Raz, Karel

doi:10.2507/27th.daaam.proceedings.050

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…Figure 5 shows the final dilatation with Z13 options. Results of thermal calculation by NX Simcenter solver are exported to structural transient solver NX Nastran and solved with respect to a contact conditions, mechanical structure and preloads [8], [14]. Fig.…”

Section: Sensitivity Studymentioning

confidence: 99%

Sensitivity Analysis and Validation of a Thermo-Mechanical Model of a Spindle

Marek¹

2018

Proceedings of the 29th International DAAAM Symposium 2018

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Displacements of milling centres caused by thermal load is a vital issue of a present research. The Final element analysis, the computed fluid dynamic and other predicting tools are strong sources of information about thermo-mechanical behaviour of a machine. Validation and verification of a solution is required as many factors and coefficients influence the solution. The presented study describes the thermo-mechanical behaviour of a spindle of a milling centre. There is demonstrated the thermo-mechanical model and the verification is shown. Simulated data are compared with the measurement. Data generated by simulated options are processed. The goal of this processing is a sensitivity analysis of a thermo-mechanical system. Compensation of thermal displacements of machining spindles is currently a requested issue. Presented sensitivity analysis might help with identification of a critical area of a heat load. Improvements in these areas increase symmetry of warming-up, cooling and other heat distribution parameters. These thermal parameters influence structural displacements. Improvements decrease negative effects of heat loading, such as thermal dilatations and angular deviations. This approach leads to increase the quality and the performance of machining.

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Section: Sensitivity Studymentioning

confidence: 99%

Sensitivity Analysis and Validation of a Thermo-Mechanical Model of a Spindle

Marek¹

2018

Proceedings of the 29th International DAAAM Symposium 2018

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“…[3][4][5][6] Thermal expansion of the functional parts of the machine is directly translated into product precision, decreasing or increasing clearance in the bearing and in the guide. 7 It can also affect machine life. It also contributes directly to the machine's energy balance.…”

Section: Introductionmentioning

confidence: 99%

The thermal balance of forging press and influence of its thermal state to machine and its operation

Cechura

Hlavac

Volejnicek

et al. 2014

Advances in Mechanical Engineering

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The paper deals with the influence of the thermal state of the machine on its function and product accuracy. The results of the experimental measurement on a particular machine are presented and consequently a virtual simulation of the thermal state of the working space depending on the time of its operation of the machine is performed. Model examples for changed boundary conditions are calculated with respect to the possibility of reducing energy consumption while maintaining a constant thermal state of the machine. Based on the simulation of the thermal state a structural analysis is performed to determine the effect of thermal conditions on the clearance of the ram guiding.

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Development of the solar roof tile with internal cooling

Raz

Chval

2020

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

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This paper deals with the development of the roof tile with the integrated solar panel. This panel is cooled down with respect to maximizing of the efficiency. Dimensions of the tile are according generally used roof tile. Plastic solar tile can replace the regular one. The design of the tile was validated by usage of thermal simulations and flow simulations in NX Nastran software. These FEM solutions were validated by the measurement on the prototype. The output of this research is prototype from plastic material. This material was selected because of the fast and cheap production.

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Effect of Heat Load on a Mechanical Forging Press

Cited by 5 publications

References 2 publications

Sensitivity Analysis and Validation of a Thermo-Mechanical Model of a Spindle

Sensitivity Analysis and Validation of a Thermo-Mechanical Model of a Spindle

The thermal balance of forging press and influence of its thermal state to machine and its operation

Development of the solar roof tile with internal cooling

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