7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION
In order to study the influence of shearer traction speed on its dynamic characteristics,using the three-axis force of pick as the description of cutting incentive of shearer pick,Hertz contact theory was used to describe shearer’s smooth boot brace stiffness and damping. Nonlinear model of meshing...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2017-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.01.001 |
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| author | CHEN HongYue BAI YangXi MAO Jun SONG QiuShuang |
| author_facet | CHEN HongYue BAI YangXi MAO Jun SONG QiuShuang |
| author_sort | CHEN HongYue |
| collection | DOAJ |
| description | In order to study the influence of shearer traction speed on its dynamic characteristics,using the three-axis force of pick as the description of cutting incentive of shearer pick,Hertz contact theory was used to describe shearer’s smooth boot brace stiffness and damping. Nonlinear model of meshing gear with the clearance was used to describe brace stiffness and damping of shearer guide boot and the pin rows. 7-DOF dynamic model of shearer was established according to Lagrange ’s equations. Vibration characteristics of shearer under different traction speed was solved by numerical methods. The results show that the increasing of speed have great influence on the vibration displacement of back-end drum,have little effect on the fuselage,and have significant influence on Y axis vibration angle of the fuselage. |
| format | Article |
| id | doaj-art-99c90b7eba7a41aabe772188ce0091df |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-99c90b7eba7a41aabe772188ce0091df2025-01-15T02:35:09ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692017-01-013916305977447-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATIONCHEN HongYueBAI YangXiMAO JunSONG QiuShuangIn order to study the influence of shearer traction speed on its dynamic characteristics,using the three-axis force of pick as the description of cutting incentive of shearer pick,Hertz contact theory was used to describe shearer’s smooth boot brace stiffness and damping. Nonlinear model of meshing gear with the clearance was used to describe brace stiffness and damping of shearer guide boot and the pin rows. 7-DOF dynamic model of shearer was established according to Lagrange ’s equations. Vibration characteristics of shearer under different traction speed was solved by numerical methods. The results show that the increasing of speed have great influence on the vibration displacement of back-end drum,have little effect on the fuselage,and have significant influence on Y axis vibration angle of the fuselage.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.01.001ShearerNonlinearVibrationClearance dynamics |
| spellingShingle | CHEN HongYue BAI YangXi MAO Jun SONG QiuShuang 7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION Jixie qiangdu Shearer Nonlinear Vibration Clearance dynamics |
| title | 7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION |
| title_full | 7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION |
| title_fullStr | 7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION |
| title_full_unstemmed | 7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION |
| title_short | 7-DOF NONLINEAR VIBRATION ANALYSIS OF SHEARER UNDER CONDITION EXCITATION |
| title_sort | 7 dof nonlinear vibration analysis of shearer under condition excitation |
| topic | Shearer Nonlinear Vibration Clearance dynamics |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.01.001 |
| work_keys_str_mv | AT chenhongyue 7dofnonlinearvibrationanalysisofshearerunderconditionexcitation AT baiyangxi 7dofnonlinearvibrationanalysisofshearerunderconditionexcitation AT maojun 7dofnonlinearvibrationanalysisofshearerunderconditionexcitation AT songqiushuang 7dofnonlinearvibrationanalysisofshearerunderconditionexcitation |