{"id":66723,"date":"2025-04-18T12:00:00","date_gmt":"2025-04-18T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/un-robot-sans-moteur-propulse-par-une-cartouche-de-gaz"},"modified":"2025-04-18T12:00:00","modified_gmt":"2025-04-18T12:00:00","slug":"un-robot-sans-moteur-propulse-par-une-cartouche-de-gaz","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/un-robot-sans-moteur-propulse-par-une-cartouche-de-gaz","title":{"rendered":"Un Robot sans Moteur Propuls\u00e9 par une Cartouche de Gaz"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Dans le monde des robots mous, des structures de\u0301pourvues de moteurs, capteurs et autres composants e\u0301lectroniques, un hexapode conc\u0327u par des chercheurs en ge\u0301nie me\u0301canique de l\u2019universite\u0301 de Californie a\u0300 San Diego (Etats-Unis) se situe dans un entre-deux. Le projet est de\u0301taille\u0301 dans un article paru en avril 2025 dans la revue Advanced Intelligent Systems.<\/p>\n<p>Fabrique\u0301 en polyure\u0301thane thermoplastique par impression 3D, d\u2019un seul tenant, c\u2019est-a\u0300-dire ne ne\u0301cessitant aucun assemblage (voir le processus dans la vide\u0301o ci-dessous), l\u2019appareil pe\u0300se 172 grammes. Il consiste en un savant re\u0301seau de valves, de membranes et de tubes internes permettant de faire circuler du gaz sous pression. Ses six pattes ont la forme de petits accorde\u0301ons jouant le ro\u0302le d\u2019articulations a\u0300 deux degre\u0301s de liberte\u0301s.<\/p>\n<p>Ce gaz provient d\u2019une cartouche en me\u0301tal de dioxyde de carbone vendue dans le commerce (partie rigide qui n\u2019autorise pas l\u2019appellation de \u00ab robot mou \u00bb, donc). Elle est fixe\u0301e sur le dos du robot et branche\u0301e a\u0300 un conduit envoyant le fluide a\u0300 l\u2019inte\u0301rieur, associe\u0301e a\u0300 un re\u0301gulateur de pression re\u0301gle\u0301 sur 138 kilopascals. Le gaz fait gonfler le mate\u0301riau, animant les pattes de manie\u0300re asyme\u0301trique.<\/p>\n<p><b>80 secondes d\u2019autonomie<\/b><\/p>\n<p>Une cartouche e\u0301quivaut a\u0300 80 secondes d\u2019autonomie. D\u2019apre\u0300s l\u2019article, en test de laboratoire, le robot a pu progresser de 85 centime\u0300tres en 21 secondes sur une surface lisse. Ce qui correspond a\u0300 un cinquie\u0300me de sa longueur par seconde. Mais il va plus vite lorsqu\u2019il est de\u0301barrasse\u0301, et donc alle\u0301ge\u0301, de la cartouche et du re\u0301gulateur et que le gaz est injecte\u0301 a\u0300 partir d\u2019une source externe.<\/p>\n<p>Quoi qu\u2019il en soit, en l\u2019e\u0301tat, ce n\u2019est e\u0301videmment pas suffisant pour pre\u0301tendre rendre un robot ope\u0301rationnel. Mais ce projet n\u2019est qu\u2019une preuve de concept et le de\u0301veloppement de l\u2019autonomie fait justement partie des enjeux principaux. Les chercheurs ont e\u0301galement teste\u0301 l\u2019engin en exte\u0301rieur, montrant que ce dernier e\u0301tait capable d\u2019avancer en terrain difficile, de monter une pente rocheuse a\u0300 18 % et me\u0302me de traverser une flaque d\u2019eau de mer sur la plage.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<span style=\"color: #ff6600\"><\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Dans le monde des robots mous, des structures de\u0301pourvues de moteurs, capteurs et autres composants e\u0301lectroniques, un hexapode conc\u0327u par des chercheurs en ge\u0301nie me\u0301canique de l\u2019universite\u0301 de Californie a\u0300 San Diego (Etats-Unis) se situe dans un entre-deux. Le projet est de\u0301taille\u0301 dans un article paru en avril 2025 dans la revue [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":66722,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-66723","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Un Robot sans Moteur Propuls\u00e9 par une Cartouche de Gaz - Senegal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/politique\/un-robot-sans-moteur-propulse-par-une-cartouche-de-gaz\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un Robot sans Moteur Propuls\u00e9 par une Cartouche de Gaz\" \/>\n<meta property=\"og:description\" content=\"Africa-Press &#8211; Senegal. 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