Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter
The resistance force of the granular matter is modeled as a linear superposition of a static (quadratic depth-dependent) resistance force and a dynamic (quadratic velocity-dependent) frictional force. The impact is defined from the moment the end point of the system comes in contact with the granula...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/129728 |
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| _version_ | 1832562386326781952 |
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| author | Eliza A. Banu Dan B. Marghitu |
| author_facet | Eliza A. Banu Dan B. Marghitu |
| author_sort | Eliza A. Banu |
| collection | DOAJ |
| description | The resistance force of the granular matter is modeled as a linear superposition of a static (quadratic depth-dependent) resistance force and a dynamic (quadratic velocity-dependent) frictional force. The impact is defined from the moment the end point of the system comes in contact with the granular matter surface until the vertical linear velocity of the end point is zero. The variables of interest are the final depth at the end of the penetration phase and the stopping time. The results for a two-link kinematic chain with two points of contact were compared to the results obtained by applying the resistance force formulation developed to corresponding CAD simulation models. The results revealed that the final displacement increases with initial velocity, while the stopping time decreases. The sensitivity to the initial velocity was studied and an improvement to the resistance force formulated as a result. A series of expressions are proposed for the resistance force coefficients. |
| format | Article |
| id | doaj-art-23c59ef4cc564080865962098ab7ba52 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-23c59ef4cc564080865962098ab7ba522025-02-03T01:22:38ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/129728129728Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular MatterEliza A. Banu0Dan B. Marghitu1Mechanical Engineering Department, Auburn University, Auburn, AL 36849, USAMechanical Engineering Department, Auburn University, Auburn, AL 36849, USAThe resistance force of the granular matter is modeled as a linear superposition of a static (quadratic depth-dependent) resistance force and a dynamic (quadratic velocity-dependent) frictional force. The impact is defined from the moment the end point of the system comes in contact with the granular matter surface until the vertical linear velocity of the end point is zero. The variables of interest are the final depth at the end of the penetration phase and the stopping time. The results for a two-link kinematic chain with two points of contact were compared to the results obtained by applying the resistance force formulation developed to corresponding CAD simulation models. The results revealed that the final displacement increases with initial velocity, while the stopping time decreases. The sensitivity to the initial velocity was studied and an improvement to the resistance force formulated as a result. A series of expressions are proposed for the resistance force coefficients.http://dx.doi.org/10.1155/2015/129728 |
| spellingShingle | Eliza A. Banu Dan B. Marghitu Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter Shock and Vibration |
| title | Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter |
| title_full | Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter |
| title_fullStr | Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter |
| title_full_unstemmed | Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter |
| title_short | Experimental and Simulation Analysis for the Impact of a Two-Link Chain with Granular Matter |
| title_sort | experimental and simulation analysis for the impact of a two link chain with granular matter |
| url | http://dx.doi.org/10.1155/2015/129728 |
| work_keys_str_mv | AT elizaabanu experimentalandsimulationanalysisfortheimpactofatwolinkchainwithgranularmatter AT danbmarghitu experimentalandsimulationanalysisfortheimpactofatwolinkchainwithgranularmatter |