What is the mechanism of flexible docking to be followed by rigid docking fulfilling the process of sequential docking?4 answersThe mechanism of flexible docking followed by rigid docking in sequential docking processes involves utilizing innovative technologies to ensure successful and efficient spacecraft or robot connections. Initially, flexible docking mechanisms are employed to absorb energy, reduce disturbance, and enhance connection rigidity. Subsequently, rigid docking mechanisms are utilized to provide stability and precise alignment during the docking process. The integration of electromagnetic forces in the docking process enhances control and safety, overcoming nonlinearity and uncertainty challenges. Additionally, incorporating error-compensation capabilities in docking mechanisms improves the docking success rate and reduces dependency on manual intervention. Overall, the sequential docking process involves a combination of flexible and rigid docking mechanisms to achieve reliable and efficient spacecraft or robot connections.
What's the problem with rigid robots that soft robots are trying to solve?5 answersSoft robots are trying to solve the problem of rigid robots by addressing their limitations. Rigid robots, which are made of rigid body parts and high-torque servo motors, have simple reproducible models and are easy to control. However, they struggle to interact with noisy and hard-to-model environments. Soft robots, on the other hand, use soft and often smart materials, inspired by the performance of biological systems, to successfully interact with such environments. Soft robots have inherent compliance and the potential for low force interactions, making them more flexible and safe. However, the complex and nonlinear dynamics of soft materials make them difficult to model and control. To overcome this challenge, soft robotics explores the concept of morphological computation, which outsources functionality directly to the body morphology of the robot. This approach utilizes the nonlinear dynamics of soft materials as a resource for implementing nonlinear functionalities, enabling soft robots to achieve performances closer to biological systems.
What are the advantages and disadvantages of compliant mechanisms?5 answersCompliant mechanisms have several advantages and disadvantages. One advantage is that they can produce desired deformations by exploiting elastic strain, eliminating the need for moveable parts. They are also gaining popularity in various fields such as microelectromechanical systems (MEMS), medical applications, and aerospace engineering. Compliant mechanisms with multiple degrees of freedom offer the advantage of simple structure and the ability to generate complex movements. However, assessing the quality of a compliant mechanism's design can be challenging due to the lack of a strict kinematics and the need for specific force systems. Additionally, the complexity of designing compliant mechanisms with multiple degrees of freedom can pose a challenge. Despite these challenges, the rise of additive manufacturing, particularly 3D printing, has contributed to the manufacturing of compliant mechanisms and improved their performance.
What are the current research challenges in compliant mechanisms?5 answersCurrent research challenges in compliant mechanisms include the need for empirical insights from practice to inform future research directions. Additionally, there is a need for industry-relevant research that addresses the inadequacy of current solutions and aligns with the needs of organizations. The challenges identified in managing regulatory compliance include the speed of regulatory changes/updates, organizational culture, risk management, scarcity of resources, and a lack of value-add perception of compliance. These challenges are considered critical and important for Information Systems research.
Have you any papers about multi-scale modeling using for analyzing the mechanism of the sandwich?5 answersStep 1:
Multi-scale modeling is discussed in the papers by Ebrahimi & Karimiasl, Fan et al., and Damanpack & Bodaghi. Ebrahimi & Karimiasl focus on the nonlinear vibration of a composite sandwich doubly curved shell with a flexible core and MR layers using a new higher-order shear deformable theory. Fan et al. present a multiscale analysis for describing fluid diffusion in polymeric sandwich composites, while Damanpack & Bodaghi introduce a new sandwich beam element for analyzing sandwich beam structures with a flexible core and partially delaminated regions.
Step 2:
Ebrahimi & Karimiasl: "Context_1"
Fan et al.: "Context_2"
Damanpack & Bodaghi: "Context_3"
Step 3:
Multi-scale modeling is discussed in the papers by Ebrahimi & Karimiasl, Fan et al., and Damanpack & Bodaghi. Ebrahimi & Karimiasl focus on the nonlinear vibration of a composite sandwich doubly curved shell with a flexible core and MR layers using a new higher-order shear deformable theory. Fan et al. present a multiscale analysis for describing fluid diffusion in polymeric sandwich composites, while Damanpack & Bodaghi introduce a new sandwich beam element for analyzing sandwich beam structures with a flexible core and partially delaminated regions.
How does the Vierendeel mechanism affect the strength and stiffness of steel beams with web openings?5 answersThe Vierendeel mechanism has a significant impact on the strength and stiffness of steel beams with web openings. Experimental and numerical investigations have shown that web openings not only weaken the practical section but also disrupt its continuity. The common failure modes observed in beams with web openings are excessive bending, Vierendeel mechanism, and web post buckling. The critical plastic hinges in castellated beams with sinusoidal openings form at the innermost and outermost corners at the shear span, rather than at the corners around a single opening. The presence of web openings reduces the load-carrying capacity of beams, with the ultimate load decreasing as the area of the opening increases. The use of ring type stiffeners can increase the mechanical strength of perforated beams and affect the Vierendeel mechanism differently depending on the opening type and web opening diameter. Small web openings have a slight decrease in strength and stiffness, while strengthened beams and columns have significant effects on increasing the load-displacement characteristics.