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Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
1Neumayer Tekfor -
Dateiname -17 May 2010
R&D Transmission
Engrenagens LevesEscolha do Melhor Design
com Base na Otimização Topológica
Dr.-Ing. Mauro Moraes de Souza
Chief Engineer Tech Center Brazil
May 17th ,2010
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Neumayer Tekfor – Parceiro global da indústria automotiva
Presença global - Plantas:
3 na Alemanha - 1 na Itália - 1 nos EUA - 1 no México - 3 no Brasil - 2 na Índia
Soluções inovadoras para:
Transmissão – Motor – Driveline – Fixação – Aplicação Especial
2 Centros Tecnológicos: Alemanha - Brasil
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
NTIS: Neumayer Tekfor Innovation Stream
Eixo do comando de válvulas – NT® CamShaft
Diferencial leve – NT® LightDiff
Eixo de transmissão oco – NT® Tekmount
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Escolha do melhor design para engrenagens leves
Engrenagem do eixo de saída – 1ª marcha
Situação atual
Motor: 3.0 l;
Tipo de veículo: passeio;
Aplicação: Torques de até 1500 Nm
Engrenagem da caixa de câmbio
Massa atual = 2,4 kg
parede
alívios
raios
espessura
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Restrições de projeto
Máximo deslocamento radial: 0,1 mm
Máximo deslocamento axial: 0,4 mm
Não alterar as áreas em azul!
Áreas congeladas
Engrenagem do eixo de saída – 1ª marcha
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Modelo FEM da geometria atual
Geometria atual
Força tangencial
Força radial
Força axial
Forças atuantes ao longo do
Ø primitivo
Elementos tetraédricos
Tamanho do elemento
Geral: 2 mm
Dentes: 0,5 mm
Condições de contorno
SPC e RBE2 no centro
geométrico da peça
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Deslocamento axial da geometria atual
Fator de magnitude = 100
0,2059
Máx.= 0,4 mm
Fator de magnitude = 100
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Deslocamento radial da geometria atual
Fator de magnitude = 100
Máx.= 0,1 mm
0,0877
Fator de magnitude = 100
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Tensão de Von Mises na geometria atual
σyield= 0,25
Axial = 0,2059 mm
Radial = 0,0877 mm
σV/σy= 0,25 no pé do dente
Estado atual:
σVon mises
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Escolha da geometria – Otimização topológica
G = ƒ(espessura, parede, alívios, raios)
Melhor geometria = ƒ (massa,G)
4 Geometrias de Partida A, B, C e D
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Geometria Otimizada
Geometria Atual (A, B, C, D)
Geometria B – Otimização Topológica
1
3
Otimização Topológica
2
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Escolha da geometria – Otimização topológica
G = ƒ(espessura, parede, alívios, raios)
Melhor geometria = ƒ (massa,G)
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Geometria Otimizada “B”
m = 2,03 kg
Geometria Atual
m = 2,40 kg
Geometria B – Otimização Topológica
1
3
Otimização Topológica
2
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Deslocamento axial da geometria B
Fator de magnitude = 100
Máx.= 0,4 mm
0,3322
Fator de magnitude = 100
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Deslocamento radial da geometria B
Máx.= 0,1 mm
0,1
Fator de magnitude = 100
Fator de magnitude = 100
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Tensão de Von Mises na geometria B
σyield= 0,41σVon mises0,32
Axial = 0,3322 mm
Radial = 0,1 mm
σV/σy = 0,41 na alma
Geometria B:
σV/σy = 0,32 no pé do dente
Legend
Von Mises Stress /
Yield Strength [Mpa]
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Otimização de forma
Geometria “B”
m = 2,03 kg
1
2
Forma final
m = 2,03 kg
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Deslocamento axial da Forma final
Fator de magnitude = 100
Máx.= 0,4 mm
0,2187
Fator de magnitude = 100
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Deslocamento radial da Forma final
Fator de magnitude = 100
Máx.= 0,1 mm
0,0708
Fator de magnitude = 100
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Tensão de Von Mises na Forma final
σyield= 0,33σVon mises
Axial = 0,2187 mm
Radial = 0,0708 mm
σV/σy = 0,33 no pé do dente
Geometria otimizada:
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Resumo
15,4% redução de massa
Deslocamento axial [mm]:
Deslocamento radial [mm]:
σVon Mises/ σyield :
Atual Forma Final
0,206
0,088
0,25 0,33
0,071
0,219
Limites
1,00
0,100
0,400
Topológica “B”
0,332
0,100
0,41
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Considerações finais
As ferramentas de CAE são instrumentos de apoio excelentes para o
engenheiro de produto na busca de soluções inovadoras que atendam as
necessidades atuais da nossa sociedade.
O sucesso de forma eficiente e eficaz não prescinde, porém, do bom senso
e da criatividade do engenheiro de produto.
Copyright © Neumayer Tekfor Holding GmbH. This document and the information embodied herein is the property of Neumayer Tekfor Holding GmbH and is disclosed in
confidence for informational purposes only. It may not be copied, disclosed or used for any purpose without the prior written consent of Neumayer Tekfor Holding GmbH.
II Seminário: A Otimização de Produtos Automotivos
Obrigado pela atenção