Workability

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Masakatsu G. Fujie - One of the best experts on this subject based on the ideXlab platform.

  • design of four arm four crawler disaster response robot octopus
    International Conference on Robotics and Automation, 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

  • ICRA - Design of four-arm four-crawler disaster response robot OCTOPUS
    2016 IEEE International Conference on Robotics and Automation (ICRA), 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

Mitsuhiro Kamezaki - One of the best experts on this subject based on the ideXlab platform.

  • design of four arm four crawler disaster response robot octopus
    International Conference on Robotics and Automation, 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

  • ICRA - Design of four-arm four-crawler disaster response robot OCTOPUS
    2016 IEEE International Conference on Robotics and Automation (ICRA), 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

Naoya Kanno - One of the best experts on this subject based on the ideXlab platform.

  • Evaluation of Hot Workability of Powder Metallurgy Ni-Based Superalloy with Different Initial Microstructures
    Metallurgical and Materials Transactions A, 2020
    Co-Authors: Masaya Higashi, Naoya Kanno
    Abstract:

    The effect of the initial microstructure on the hot Workability of a powder metallurgy Ni-based superalloy was investigated in the high-temperature range of 950 °C to 1180 °C and strain rate range of 0.001 to 1.0 s^−1. Six samples with different initial microstructures were fabricated by various hot isostatic pressing (HIP) conditions and subsequent treatments such as hot extrusion. The coarse-grained samples exhibited low hot Workability regardless of the deformation conditions. In contrast, the hot Workability of the fine-grained samples significantly varied depending on the deformation conditions. The hot Workability exhibited a peak at the sub-solvus temperature of ~ 1100 °C and decreased at temperatures higher and lower than this temperature. In addition, the hot Workability decreased monotonically with increasing the strain rate. The prior particle boundaries (PPBs) acted as cavity nucleation sites and crack paths, especially at lower temperatures and higher strain rates, resulting in early fracture and low hot Workability. With decreasing the grain size, the hot Workability at the peak temperature improved. The extruded sample with the smallest grain size exhibited the best hot Workability, owing to the avoidance of PPB fracture and the acceleration of dynamic recrystallization.

  • Effect of initial powder particle size on the hot Workability of powder metallurgy Ni-based superalloys
    Materials & Design, 2020
    Co-Authors: Masaya Higashi, Naoya Kanno
    Abstract:

    Abstract The effect of the initial powder particle size on the hot Workability of Ni-based superalloys was investigated. Herein, four powders with different particle size ranges ( 106 μm) exhibited superior hot Workability than that of the sample fabricated using the powder with finer particles (

Shigeki Sugano - One of the best experts on this subject based on the ideXlab platform.

  • design of four arm four crawler disaster response robot octopus
    International Conference on Robotics and Automation, 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

  • ICRA - Design of four-arm four-crawler disaster response robot OCTOPUS
    2016 IEEE International Conference on Robotics and Automation (ICRA), 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

Ken Ichiryu - One of the best experts on this subject based on the ideXlab platform.

  • design of four arm four crawler disaster response robot octopus
    International Conference on Robotics and Automation, 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.

  • ICRA - Design of four-arm four-crawler disaster response robot OCTOPUS
    2016 IEEE International Conference on Robotics and Automation (ICRA), 2016
    Co-Authors: Mitsuhiro Kamezaki, Tatsuzo Ishida, Ken Ichiryu, Masatoshi Seki, Yo Kobayashi, Shigeki Sugano, Hiroyuki Ishii, Kenji Hashimoto, Atsuo Takanishi, Masakatsu G. Fujie
    Abstract:

    We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and Workability, e.g., conducting complex debris-demolition work. However, conventional disaster response robots are specialized in either mobility or Workability. Moreover, strategies to independently enhance the capability of crawlers for mobility and arms for Workability will increase the robot size and weight. To balance environmental applicability with the mobility and Workability, OCTOPUS is equipped with a mutual complementary strategy between its arms and crawlers. The four arms conduct complex tasks while ensuring stabilization when climbing steps. The four crawlers translate rough terrain while avoiding toppling over when conducting demolition work. OCTOPUS is hydraulic driven and teleoperated by two operators. To evaluate the performance of OCTOPUS, we conducted preliminary experiments involving climbing high steps and removing attached objects by using the four arms. The results showed that OCTOPUS completed the two tasks by adequately coordinating its four arms and four crawlers and improvement in operability needs.