The evaluation and comparison of stress node on extended octognal ring transducers by strain energy theory and finite element method
Küçük Resim Yok
Tarih
2011
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Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The extended octagonal ring transducer generally are used in studies of agricultural engineering, particularly in the study of the forces and moments acting on soil engaging implements. The extended octagonal ring transducer provides simultaneous monitoring of the horizontal and vertical force components and the moment in the plane of these forces. The essential principle of an extended octagonal ring transducer is that when horizontal and vertical forces and moment are applied to a ring there are stress nodes which can be used as a basis for independent force component measurement with appropriately mounted strain gauge bridges. The two force components need to be measured with minimum cross sensitivity. In this study, in order to estimate the stress nodes locations and calculating the strain distribution on the extended octagonal ring transducer to identify optimal strain gage locations and reduce cross sensitivity the strain energy theory and linear elastic finite element analysis were used and the results were compared. The strain gauges location estimating by means of strain energy theory was selected according to a program which was constructed in MATLAB for Mclaughlin equations and in the case of finite element method, the ANSYS 12 finite element package was used to generate a mesh of SOLID187 type elements for the extended octagonal ring transducer.
The extended octagonal ring transducer generally are used in studies of agricultural engineering, particularly in the study of the forces and moments acting on soil engaging implements. The extended octagonal ring transducer provides simultaneous monitoring of the horizontal and vertical force components and the moment in the plane of these forces. The essential principle of an extended octagonal ring transducer is that when horizontal and vertical forces and moment are applied to a ring there are stress nodes which can be used as a basis for independent force component measurement with appropriately mounted strain gauge bridges. The two force components need to be measured with minimum cross sensitivity. In this study, in order to estimate the stress nodes locations and calculating the strain distribution on the extended octagonal ring transducer to identify optimal strain gage locations and reduce cross sensitivity the strain energy theory and linear elastic finite element analysis were used and the results were compared. The strain gauges location estimating by means of strain energy theory was selected according to a program which was constructed in MATLAB for Mclaughlin equations and in the case of finite element method, the ANSYS 12 finite element package was used to generate a mesh of SOLID187 type elements for the extended octagonal ring transducer.
The extended octagonal ring transducer generally are used in studies of agricultural engineering, particularly in the study of the forces and moments acting on soil engaging implements. The extended octagonal ring transducer provides simultaneous monitoring of the horizontal and vertical force components and the moment in the plane of these forces. The essential principle of an extended octagonal ring transducer is that when horizontal and vertical forces and moment are applied to a ring there are stress nodes which can be used as a basis for independent force component measurement with appropriately mounted strain gauge bridges. The two force components need to be measured with minimum cross sensitivity. In this study, in order to estimate the stress nodes locations and calculating the strain distribution on the extended octagonal ring transducer to identify optimal strain gage locations and reduce cross sensitivity the strain energy theory and linear elastic finite element analysis were used and the results were compared. The strain gauges location estimating by means of strain energy theory was selected according to a program which was constructed in MATLAB for Mclaughlin equations and in the case of finite element method, the ANSYS 12 finite element package was used to generate a mesh of SOLID187 type elements for the extended octagonal ring transducer.
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Cilt
7
Sayı
3
