{"id":1104,"date":"2024-05-24T19:47:29","date_gmt":"2024-05-24T10:47:29","guid":{"rendered":"http:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=1104"},"modified":"2025-06-30T17:44:25","modified_gmt":"2025-06-30T08:44:25","slug":"%e3%83%a1%e3%83%b3%e3%83%90%e3%83%bc-%e5%a1%a9%e5%b7%9d-%e5%a4%95%e9%a6%ac-2","status":"publish","type":"page","link":"https:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=1104","title":{"rendered":"\u30e1\u30f3\u30d0\u30fc | \u5869\u5ddd \u5915\u99ac"},"content":{"rendered":"\n

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\u5c06\u6765\u7684\u306b\u306f\u3001\u5d29\u843d\u306e\u5371\u967a\u304c\u3042\u308b\u5efa\u7269\u306e\u5185\u90e8\u3084\u6df1\u3044\u68ee\u306e\u4e2d\u306a\u3069\u3001\u4eba\u304c\u5165\u308a\u306b\u304f\u3044\u5834\u6240\u3067\u306e\u635c\u7d22\u30fb\u70b9\u691c\u30fb\u74b0\u5883\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306b\u5f79\u7acb\u3066\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u6606\u866b\u304b\u3089\u5b66\u3093\u3060\u3057\u304f\u307f\u3092\u30ed\u30dc\u30c3\u30c8\u306b\u53d6\u308a\u5165\u308c\u308b\u3053\u3068\u3067\u3001\u300c\u5c0f\u3055\u304f\u3066\u3082\u983c\u308a\u306b\u306a\u308b\u98db\u884c\u30ed\u30dc\u30c3\u30c8\u300d\u3092\u5b9f\u73fe\u3057\u3001\u793e\u4f1a\u306e\u5b89\u5168\u3068\u74b0\u5883\u4fdd\u5168\u306b\u8ca2\u732e\u3059\u308b\u3053\u3068\u304c\u76ee\u6a19\u3067\u3059\u3002<\/p>\n\n\n\n

In disaster sites and environmental surveys, it is essential to grasp the situation as quickly and accurately as possible. However, dangerous ground and narrow spaces often prevent people and large machines from getting close. For this reason, we are turning our attention to palm-sized drones, especially flying robots that are about the same size as insects.
Insects fly freely even through tight gaps by using indirect flight muscles inside the body and tiny hinge joints at the base of their wings. If we can reproduce this excellent movement in engineering, drones will be able to collect information safely and quickly in places that people cannot enter. Yet the structure is so complex and the energy demands so strict that ordinary small motors have not been able to copy it well.
To solve this problem, I am building a flapping system that combines shape-memory alloy wire and 3-D-printed parts to imitate the muscles and joints of an insect. Shape-memory alloy is a light material that shortens when heated by electricity and lengthens when it cools, so it can act as a very small drive unit instead of a motor. With this material, I aim to create a robot that flaps like an insect and flies while using little energy.
In the future, I imagine these tiny robots helping in searches, inspections, and environmental monitoring inside buildings at risk of collapse or deep within dense forests where people find it hard to go. By bringing ideas learned from insects into robotics, my goal is to realize \u201csmall but reliable\u201d flying robots that contribute to human safety and environmental protection<\/p>\n\n\n

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SMA\u30ef\u30a4\u30e4\u306b\u3088\u308a\u99c6\u52d5\u3057\u305f\u69d8\u5b50\uff08Motion driven by SMA wire\uff09<\/figcaption><\/figure><\/div>","protected":false},"excerpt":{"rendered":"

\u707d\u5bb3\u73fe\u5834\u3084\u74b0\u5883\u8abf\u67fb\u3067\u306f\u3001\u3067\u304d\u308b\u3060\u3051\u65e9\u304f\u6b63\u78ba\u306b\u72b6\u6cc1\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u3057… Continue Reading →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/1104"}],"collection":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1104"}],"version-history":[{"count":3,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/1104\/revisions"}],"predecessor-version":[{"id":1382,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/1104\/revisions\/1382"}],"wp:attachment":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}