{"id":349,"date":"2017-06-15T09:54:34","date_gmt":"2017-06-15T16:54:34","guid":{"rendered":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/?page_id=349"},"modified":"2017-06-30T09:45:00","modified_gmt":"2017-06-30T16:45:00","slug":"pneumatic-cylinder-with-embedded-mr-brake","status":"publish","type":"page","link":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/pneumatic-cylinder-with-embedded-mr-brake\/","title":{"rendered":"Pneumatic cylinder with embedded MR-brake"},"content":{"rendered":"<br \/>\n<section id=\"builder-section-1459532595032\" class=\"row single gutter pad-top\">\n<div style=\"\" class=\"column one \">\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-351 alignleft\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-792x166.png\" alt=\"\" width=\"396\" height=\"83\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-792x166.png 792w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-396x83.png 396w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-768x161.png 768w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB.png 900w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-352\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-792x273.png\" alt=\"\" width=\"365\" height=\"126\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-792x273.png 792w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-396x137.png 396w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-768x265.png 768w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-990x342.png 990w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-1188x410.png 1188w\" sizes=\"(max-width: 365px) 100vw, 365px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>This research explored a new linear hybrid actuator, which consists of a pneumatic cylinder with a magnetorheological (MR) brake embedded in its piston.\u00a0 MR-brakes are promising actuators since they can apply large forces in a small actuator size, but they can only oppose motion, as they are passive actuators.\u00a0 Pneumatic cylinders are desirable actuators due to their high force-to-weight ratio and ability to apply active forces.\u00a0 However, they require expensive servo valves for precise position control.<\/p>\n<p>The new hybrid actuator benefits from the advantages of MR-brakes and pneumatic cylinders.\u00a0 It can apply forces using compressed air and can resist external forces using the MR-brake.\u00a0 The embedded brake also eliminates the undesirable side effects of using compressed air and allows precise positioning of the piston anywhere in its stroke with simple solenoid valves.\u00a0 Fields such as haptics and robotics might benefit greatly from the use of the hybrid actuator where a high force-to-weight ratio could be employed.<\/p>\n<p>This research\u00a0contributes (1) a <strong>triple helix flux guide<\/strong>, which solves the problem of applying current to the MR-brake on the piston inside the cylinder while the piston moves.\u00a0 As a result, the coil can now be moved to the outside.\u00a0 <em>To the best of our knowledge, this is the first linear MR-brake with an external coil<\/em>; (2) serpentine flux path was integrated into the piston, which enables larger braking force to be developed without making the device larger<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><em><strong>Publications<\/strong><\/em><\/p>\n<ul type=\"disc\">\n<li>&#8220;Pneumatic cylinder with magnetorheological brake using serpentine and helix flux guide as a linear hybrid actuator for haptics,&#8221;\u00a0<em>Journal of Intelligent Materials, Systems and Structures<\/em>, vol. 28, issue 10, pp. 1303-1321, 2017.<\/li>\n<li>\u201cPneumatic actuator with embedded\u00a0MR-brake for haptics,\u201d Proceedings of 2017 IEEE World Haptics Conference (WHC 2017), Furstenfeldbruck (Munich), Germany, June 2017.<\/li>\n<\/ul><\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-351 alignleft\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-792x166.png\" alt=\"\" width=\"396\" height=\"83\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-792x166.png 792w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-396x83.png 396w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB-768x161.png 768w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HybridActuatorB.png 900w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-352\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-792x273.png\" alt=\"\" width=\"365\" height=\"126\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-792x273.png 792w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-396x137.png 396w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-768x265.png 768w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-990x342.png 990w, https:\/\/wpcdn.web.wsu.edu\/wp-vancouverlabs\/uploads\/sites\/1185\/2017\/06\/HelixStructure-1188x410.png 1188w\" sizes=\"(max-width: 365px) 100vw, 365px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>This research explored a new linear hybrid actuator, which consists of a pneumatic cylinder with a magnetorheological (MR) brake embedded in its piston.\u00a0 MR-brakes are promising actuators since they can apply large forces in a small actuator size, but they can only oppose motion, as they are &#8230; <a href=\"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/pneumatic-cylinder-with-embedded-mr-brake\/\" class=\"more-link\"><span class=\"more-default\">&raquo; More &#8230;<\/span><\/a><\/p>\n","protected":false},"author":2136,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-builder.php","meta":{"_wsuwp_accessibility_report":[]},"wsuwp_university_location":[],"wsuwp_university_org":[],"_links":{"self":[{"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/pages\/349"}],"collection":[{"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/users\/2136"}],"replies":[{"embeddable":true,"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/comments?post=349"}],"version-history":[{"count":8,"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/pages\/349\/revisions"}],"predecessor-version":[{"id":363,"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/pages\/349\/revisions\/363"}],"wp:attachment":[{"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/media?parent=349"}],"wp:term":[{"taxonomy":"wsuwp_university_location","embeddable":true,"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/wsuwp_university_location?post=349"},{"taxonomy":"wsuwp_university_org","embeddable":true,"href":"https:\/\/vancouver.labs.wsu.edu\/robotics-and-automation\/wp-json\/wp\/v2\/wsuwp_university_org?post=349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}