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Robot Single Actuator Wave-like (SAW) Terinspirasi Gerakan Ular

Tinuku ~ Robot Single Actuator Wave-like (SAW) menggunakan satu Motor untuk merayap, memanjat dan berenang sebagaimana terinspirasi gerakan ular.

Gerak robot adalah tujuan R&D sejak lama dan insinyur datang dengan berbagai macam cara membuat robot bergerak apakah meluncur, merangkak, berenang atau bahkan berjalan seperti manusia, kecoa dan salamander.

Tinuku Robot Single Actuator Wave-like (SAW) Terinspirasi Gerakan Ular

Beberapa peneliti mendekati tugas gerakan robot dari perspektif lebih teoritis dalam biomimetika yang mengemulasi kiprah hewan sebenarnya seperti Multi-Appendage Robotic System (MARS) dari Virginia Tech's Robotics & Mechanisms Laboratory, sekarang disimpan di University of California, Los Angeles.

Tujuan asli proyek MARS adalah mengembangkan sistem kiprah berjalan yang mampu bernegosiasi dengan variasi medan sehingga jari-jari kaki axi-simetris di sekitar tubuh. Hasilnya adalah sebuah robot yang terlihat seperti raksasa laba-laba berkaki enam.

Sekarang insinyur Ben-Gurion University di Negev mengembangkan robot pertama yang dihasilkan gerakan gelombang menggunakan tunggal. Terinspirasi gerak ular, Single Actuator Wave-like Robot (SAW) terlihat seperti mainan anak-anak, tapi bergerak maju dan mundur dengan memproduksi gelombang sinus terus maju.

Mesin berbakat dapat memanjat vertikal dalam terowongan dan merangkak di berbagai permukaan seperti pasir, rumput dan kerikil menggunakan roda pasif hanya untuk kemudi. Para peneliti melaporkan ke jurnal Bioinspiration & Biomimetics

Kecepatan tertinggi 57 cm per detik dalam gerakan horisontal yaitu 5 kali lebih cepat daripada robot serupa dan bisa merangkak mundur. Sedangkan kecepatan top dalam memancat adalah 8 cm per detik.

David Zarrouk dan mendesain robot untuk misi pemeliharaan, pencarian, penyelamatan dan aplikasi keamanan. Tapi dapat ditingkatkan dan dibangun dalam versi yang lebih besar. Robot kuat SAW dapat diandalkan karena hanya membutuhkan sedikit perawatan, mudah dibuat dan hemat energi.



"Kami mengembangkan sebuah model robot kinematik yang menyumbang mekanik 2 dimensi gerak dan menghasilkan kecepatan relatif terhadap motor," kata Zarrouk dan rekan.

"Dengan mengoptimalkan parameter, kami berhasil membuat perjalanan robot 13% lebih cepat dari kecepatan gelombang itu sendiri," kata Zarrouk dan rekan.

Robot tidak memiliki tulang belakang lurus internal dan arah dari gerak ditentukan oleh arah putaran motor. Desain sederhana robot SAW hanya membutuhkan satu motor dengan 2 versi tahan air. Versi tahan dapat berenang dengan kecepatan puncak 6 cm per detik.

Versi yang lebih kecil seukuran pena. Bahkan miniaturisasi lebih lanjut mungkin menjadi robot berdiameter 1 cm atau kurang yang dapat digunakan untuk perjalanan dalam tubuh manusia selama prosedur diagnostik seperti pencitraan biopsi.

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