A Passively Adaptive Rotary-to-Linear Continuously Variable Transmission
In this paper, we present the synthesis and design of a rotary-to-linear continuously variable transmission with the ability to passively change gear ratio as a function of the output load. The primary mechanism involves variable-pitch rollers whose angle changes as a function of the output load due...
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| Veröffentlicht in: | IEEE transactions on robotics 2014-10, Vol.30 (5), p.1148-1160 |
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| container_title | IEEE transactions on robotics |
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| creator | Belter, Joseph T. Dollar, Aaron M. |
| description | In this paper, we present the synthesis and design of a rotary-to-linear continuously variable transmission with the ability to passively change gear ratio as a function of the output load. The primary mechanism involves variable-pitch rollers whose angle changes as a function of the output load due to the compliance properties of their housing. By changing spring stiffness, the relationship between the linear output load and transmission ratio can be tuned to optimize drive motor operating conditions over the entire range of output loads. After laying out the working concept, we show the performance analysis for such a transmission applied to a 6-W DC motor and present an example design analysis for tuning to maximize power output over the entire range of operating conditions. A prototype system was used to measure key parameters such as rolling resistance and lateral slip coefficients and to evaluate the transmission performance in a target application. |
| doi_str_mv | 10.1109/TRO.2014.2333096 |
| format | Article |
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The primary mechanism involves variable-pitch rollers whose angle changes as a function of the output load due to the compliance properties of their housing. By changing spring stiffness, the relationship between the linear output load and transmission ratio can be tuned to optimize drive motor operating conditions over the entire range of output loads. After laying out the working concept, we show the performance analysis for such a transmission applied to a 6-W DC motor and present an example design analysis for tuning to maximize power output over the entire range of operating conditions. A prototype system was used to measure key parameters such as rolling resistance and lateral slip coefficients and to evaluate the transmission performance in a target application.</description><identifier>ISSN: 1552-3098</identifier><identifier>EISSN: 1941-0468</identifier><identifier>DOI: 10.1109/TRO.2014.2333096</identifier><identifier>CODEN: ITREAE</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Actuators ; Constant power ; continuously variable transmission (CVT) ; Couplings ; Data transmission ; DC motors ; Design analysis ; Direct current ; Electric motors ; Force ; Gear ratios ; Laying ; linear actuator ; Optimization techniques ; passive adaptive ; Performance evaluation ; Prototypes ; Resistance ; Rollers ; Shafts ; Systems design ; Torque ; Transmissions (automotive) ; Tuning ; underactuated</subject><ispartof>IEEE transactions on robotics, 2014-10, Vol.30 (5), p.1148-1160</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Oct 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c394t-84e530caea9490b0681da492265520c99c9b25e4faa338a78f445cc27d36bbc73</citedby><cites>FETCH-LOGICAL-c394t-84e530caea9490b0681da492265520c99c9b25e4faa338a78f445cc27d36bbc73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6894565$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27923,27924,54757</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6894565$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Belter, Joseph T.</creatorcontrib><creatorcontrib>Dollar, Aaron M.</creatorcontrib><title>A Passively Adaptive Rotary-to-Linear Continuously Variable Transmission</title><title>IEEE transactions on robotics</title><addtitle>TRO</addtitle><description>In this paper, we present the synthesis and design of a rotary-to-linear continuously variable transmission with the ability to passively change gear ratio as a function of the output load. The primary mechanism involves variable-pitch rollers whose angle changes as a function of the output load due to the compliance properties of their housing. By changing spring stiffness, the relationship between the linear output load and transmission ratio can be tuned to optimize drive motor operating conditions over the entire range of output loads. After laying out the working concept, we show the performance analysis for such a transmission applied to a 6-W DC motor and present an example design analysis for tuning to maximize power output over the entire range of operating conditions. A prototype system was used to measure key parameters such as rolling resistance and lateral slip coefficients and to evaluate the transmission performance in a target application.</description><subject>Actuators</subject><subject>Constant power</subject><subject>continuously variable transmission (CVT)</subject><subject>Couplings</subject><subject>Data transmission</subject><subject>DC motors</subject><subject>Design analysis</subject><subject>Direct current</subject><subject>Electric motors</subject><subject>Force</subject><subject>Gear ratios</subject><subject>Laying</subject><subject>linear actuator</subject><subject>Optimization techniques</subject><subject>passive adaptive</subject><subject>Performance evaluation</subject><subject>Prototypes</subject><subject>Resistance</subject><subject>Rollers</subject><subject>Shafts</subject><subject>Systems design</subject><subject>Torque</subject><subject>Transmissions (automotive)</subject><subject>Tuning</subject><subject>underactuated</subject><issn>1552-3098</issn><issn>1941-0468</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1LAzEQhoMoWKt3wcuCFy9bJ59NjqWoFQqVUr2GbJrClu2mJrtC_71TWjx4yhCed3jmJeSewohSMM-r5WLEgIoR45yDURdkQI2gJQilL3GWkpX4r6_JTc5bACYM8AGZTYoPl3P9E5pDMVm7fYdjsYydS4eyi-W8boNLxTS2Xd32sc-IfblUu6oJxSq5Nu9qjMf2llxtXJPD3fkdks_Xl9V0Vs4Xb-_Tybz03Iiu1CJIDt4FZ1CgAqXp2gnDmEJB8MZ4UzEZxMY5zrUb640Q0ns2XnNVVX7Mh-TptHef4ncfcmdRwIemcW1APUsVM1wKMBTRx3_oNvapRTukKAfKmJZIwYnyKeacwsbuU73D8y0Fe6zWYrX2WK09V4uRh1OkDiH84UobIZXkv3dVc-c</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>Belter, Joseph T.</creator><creator>Dollar, Aaron M.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The primary mechanism involves variable-pitch rollers whose angle changes as a function of the output load due to the compliance properties of their housing. By changing spring stiffness, the relationship between the linear output load and transmission ratio can be tuned to optimize drive motor operating conditions over the entire range of output loads. After laying out the working concept, we show the performance analysis for such a transmission applied to a 6-W DC motor and present an example design analysis for tuning to maximize power output over the entire range of operating conditions. A prototype system was used to measure key parameters such as rolling resistance and lateral slip coefficients and to evaluate the transmission performance in a target application.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TRO.2014.2333096</doi><tpages>13</tpages></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Actuators Constant power continuously variable transmission (CVT) Couplings Data transmission DC motors Design analysis Direct current Electric motors Force Gear ratios Laying linear actuator Optimization techniques passive adaptive Performance evaluation Prototypes Resistance Rollers Shafts Systems design Torque Transmissions (automotive) Tuning underactuated |
| title | A Passively Adaptive Rotary-to-Linear Continuously Variable Transmission |
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