Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This thesis investigates the characteristics of an involute gear system including contact stresses, bending stresses, and the transmission errors of gears in mesh. Gearing is one of the most critical components in mechanical power transmission systems. Transmission error is considered to be one of the main contributors to noise and vibration in a gear set. Transmission error measurement has become popular as an area of research on gears and is possible method for quality control. To estimate transmission error in a gear system, the characteristics of involute spur gears were analyzed by using the finite element method. The contact stresses were examined using 2-D FEM models. The bending stresses in the tooth root were examined using a 3-D FEM model. Current methods of calculating gear contact stresses use Hertzs equations, which were originally derived for contact between two cylinders. To enable the investigation of contact problems with FEM, the stiffness relationship between the two contact areas is usually established through a spring placed between the two contacting areas. This can be achieved by inserting a contact element placed in between the two areas where contact occurs. The results of the two dimensional FEM analyses from ANSYS are presented. These stresses were compared with the theoretical values. Both results agree very well. This indicates that the FEM model is accurate. This thesis also considers the variations of the whole gear body stiffness arising from the gear body rotation due to bending deflection, shearing displacement and contact deformation. Many different positions within the meshing cycle were investigated.
Stresses and Deformations in Involute Spur Gears by Finite Element Method
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This thesis investigates the characteristics of an involute gear system including contact stresses, bending stresses, and the transmission errors of gears in mesh. Gearing is one of the most critical components in mechanical power transmission systems. Transmission error is considered to be one of the main contributors to noise and vibration in a gear set. Transmission error measurement has become popular as an area of research on gears and is possible method for quality control. To estimate transmission error in a gear system, the characteristics of involute spur gears were analyzed by using the finite element method. The contact stresses were examined using 2-D FEM models. The bending stresses in the tooth root were examined using a 3-D FEM model. Current methods of calculating gear contact stresses use Hertzs equations, which were originally derived for contact between two cylinders. To enable the investigation of contact problems with FEM, the stiffness relationship between the two contact areas is usually established through a spring placed between the two contacting areas. This can be achieved by inserting a contact element placed in between the two areas where contact occurs. The results of the two dimensional FEM analyses from ANSYS are presented. These stresses were compared with the theoretical values. Both results agree very well. This indicates that the FEM model is accurate. This thesis also considers the variations of the whole gear body stiffness arising from the gear body rotation due to bending deflection, shearing displacement and contact deformation. Many different positions within the meshing cycle were investigated.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This thesis investigates the characteristics of an involute gear system including contact stresses, bending stresses, and the transmission errors of gears in mesh. Gearing is one of the most critical components in mechanical power transmission systems. Transmission error is considered to be one of the main contributors to noise and vibration in a gear set. Transmission error measurement has become popular as an area of research on gears and is possible method for quality control. To estimate transmission error in a gear system, the characteristics of involute spur gears were analyzed by using the finite element method. The contact stresses were examined using 2-D FEM models. The bending stresses in the tooth root were examined using a 3-D FEM model. Current methods of calculating gear contact stresses use Hertzs equations, which were originally derived for contact between two cylinders. To enable the investigation of contact problems with FEM, the stiffness relationship between the two contact areas is usually established through a spring placed between the two contacting areas. This can be achieved by inserting a contact element placed in between the two areas where contact occurs. The results of the two dimensional FEM analyses from ANSYS are presented. These stresses were compared with the theoretical values. Both results agree very well. This indicates that the FEM model is accurate. This thesis also considers the variations of the whole gear body stiffness arising from the gear body rotation due to bending deflection, shearing displacement and contact deformation. Many different positions within the meshing cycle were investigated.
Tribology in Materials and Applications
Author: Jitendra Kumar Katiyar
Publisher: Springer Nature
ISBN: 3030474518
Category : Technology & Engineering
Languages : en
Pages : 306
Book Description
This book broadens the knowledge of tribology. This book is evolved out of current research trends on tribological performance of systems related to nano tribology, rheology, engines, polymer brushes, composite materials, erosive wear and lubrication. The book deals with enhancing the ideas on tribological properties, the different types of wear phenomenon and lubrication enhancement. Further, the tribological performance of systems, whether nano, micro or macro-scale, depends upon a large number of external parameters and important among them are temperature, contact pressure and relative speed. Thus, the book focus on the theoretical aspects to industrial applications of tribology.
Publisher: Springer Nature
ISBN: 3030474518
Category : Technology & Engineering
Languages : en
Pages : 306
Book Description
This book broadens the knowledge of tribology. This book is evolved out of current research trends on tribological performance of systems related to nano tribology, rheology, engines, polymer brushes, composite materials, erosive wear and lubrication. The book deals with enhancing the ideas on tribological properties, the different types of wear phenomenon and lubrication enhancement. Further, the tribological performance of systems, whether nano, micro or macro-scale, depends upon a large number of external parameters and important among them are temperature, contact pressure and relative speed. Thus, the book focus on the theoretical aspects to industrial applications of tribology.
The Mechanics of Mechanical Watches and Clocks
Author: Ruxu Du
Publisher: Springer Science & Business Media
ISBN: 3642293085
Category : Technology & Engineering
Languages : en
Pages : 182
Book Description
"The Mechanics of Mechanical Watches and Clocks" presents historical views and mathematical models of mechanical watches and clocks. Although now over six hundred years old, mechanical watches and clocks are still popular luxury items that fascinate many people around the world. However few have examined the theory of how they work as presented in this book. The illustrations and computer animations are unique and have never been published before. It will be of significant interest to researchers in mechanical engineering, watchmakers and clockmakers, as well as people who have an engineering background and are interested in mechanical watches and clocks. It will also inspire people in other fields of science and technology, such as mechanical engineering and electronics engineering, to advance their designs. Professor Ruxu Du works at the Chinese University of Hong Kong, China. Assistant Professor Longhan Xie works at the South China University of Technology, China.
Publisher: Springer Science & Business Media
ISBN: 3642293085
Category : Technology & Engineering
Languages : en
Pages : 182
Book Description
"The Mechanics of Mechanical Watches and Clocks" presents historical views and mathematical models of mechanical watches and clocks. Although now over six hundred years old, mechanical watches and clocks are still popular luxury items that fascinate many people around the world. However few have examined the theory of how they work as presented in this book. The illustrations and computer animations are unique and have never been published before. It will be of significant interest to researchers in mechanical engineering, watchmakers and clockmakers, as well as people who have an engineering background and are interested in mechanical watches and clocks. It will also inspire people in other fields of science and technology, such as mechanical engineering and electronics engineering, to advance their designs. Professor Ruxu Du works at the Chinese University of Hong Kong, China. Assistant Professor Longhan Xie works at the South China University of Technology, China.
On the Design of Internal Involute Spur Gears
Author: Sven Erik Andersson
Publisher:
ISBN:
Category : Gearing, Spur
Languages : en
Pages : 74
Book Description
Publisher:
ISBN:
Category : Gearing, Spur
Languages : en
Pages : 74
Book Description
Scientific and Technical Aerospace Reports
PRICM 6
Author: Young Won Chang
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 928
Book Description
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 928
Book Description
NASA Technical Note
Proceedings of the ASME Tribology Division
Author:
Publisher:
ISBN:
Category : Lubrication and lubricants
Languages : en
Pages : 332
Book Description
Publisher:
ISBN:
Category : Lubrication and lubricants
Languages : en
Pages : 332
Book Description
International Journal of Engineering Research in Africa
Author: Trans Tech Publications, Limited
Publisher: Trans Tech Publications Ltd
ISBN: 3035734909
Category : Technology & Engineering
Languages : en
Pages : 180
Book Description
We are glad to present to our readers the 37th volume of International Journal of Engineering Research in Africa. This volume contains articles describing the research results in the fields of materials science, mechanical engineering, power distribution, construction materials and technologies, technological processes in the chemical production and environmental engineering, network engineering and supply chain. The articles will be useful for many engineers as well as for academic teachers and students majoring in these fields of engineering science.
Publisher: Trans Tech Publications Ltd
ISBN: 3035734909
Category : Technology & Engineering
Languages : en
Pages : 180
Book Description
We are glad to present to our readers the 37th volume of International Journal of Engineering Research in Africa. This volume contains articles describing the research results in the fields of materials science, mechanical engineering, power distribution, construction materials and technologies, technological processes in the chemical production and environmental engineering, network engineering and supply chain. The articles will be useful for many engineers as well as for academic teachers and students majoring in these fields of engineering science.
Proceedings of the ASME Tribology Division--2005
Author:
Publisher: American Society of Mechanical Engineers
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 322
Book Description
Publisher: American Society of Mechanical Engineers
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 322
Book Description