Report on Current Developments in Multi-Legged and Soft Robotics

General Direction of the Field

The recent advancements in multi-legged and soft robotics are pushing the boundaries of locomotion capabilities, particularly in complex and confined environments. Researchers are increasingly focusing on integrating biological principles with innovative mechanical designs to enhance the performance and adaptability of these robots. The field is moving towards developing robots that can not only navigate challenging terrains but also perform complex maneuvers such as steering, self-righting, and gap negotiation in confined spaces.

One of the key trends is the exploration of new actuation mechanisms and control strategies to improve the versatility and robustness of multi-legged robots. The introduction of peristaltic waves and the modulation of body undulation waves are notable examples of how researchers are leveraging novel wave patterns to enhance obstacle-climbing and steering capabilities. These innovations are paving the way for the development of all-terrain robots that can operate effectively in diverse environments, from rugged terrains to narrow confined spaces.

In the realm of soft robotics, there is a growing emphasis on simplifying the design and control of locomotion systems. Researchers are developing single-actuator systems that can generate complex undulation motions, reducing the weight and complexity associated with multiple actuators. This trend is particularly significant for soft-bodied robots, which require flexibility and adaptability to navigate unstructured environments.

Another emerging area is the integration of soft robotic exosuits for human assistance, particularly in supporting movement disorders. These exosuits leverage soft, pneumatically driven actuators to provide continuous support during daily activities, offering a promising solution for enhancing mobility and independence.

Noteworthy Papers

1. Addition of a peristaltic wave improves multi-legged locomotion performance on complex terrains.
   This paper introduces a novel actuation mechanism that significantly enhances obstacle-climbing capabilities in multi-legged robots, demonstrating a promising direction for all-terrain locomotion.

2. Steering Elongate Multi-legged Robots By Modulating Body Undulation Waves.
   The study explores effective steering strategies for multi-legged robots, showcasing the versatility of the two-wave template in enabling complex steering behaviors.

3. Effective self-righting strategies for elongate multi-legged robots.
   This work presents a comparative biological and robophysical approach to developing self-righting strategies, enhancing the mobility and robustness of multi-legged robots in practical applications.

4. A Soft Robotic Exosuit For Knee Extension Using Hyper-Bending Actuators.
   The paper introduces a novel design framework for soft exosuits, offering a promising solution for supporting movement disorders and enhancing daily mobility.

5. Streamlined shape of cyborg cockroach promotes traversability in confined environments by gap negotiation.
   This study highlights the importance of streamlined body shapes in improving the locomotor performance of cyborg insects, particularly in confined environments.