scispace - formally typeset
Search or ask a question

How does the simulation of joint clearance effects impact the performance of mechanisms with rigid and flexible links? 


Best insight from top research papers

Simulation of joint clearance effects significantly impacts the performance of mechanisms with both rigid and flexible links. Joint clearance, introduced to alleviate constraints in overconstrained linkages , can compromise stability, accuracy, and dynamics performance in high-speed and lightweight mechanisms . The consideration of clearance joints in dynamic modeling accounts for contact deformations, friction, and damping forces, enabling the evaluation of dynamic processes and the calculation of clearances . Numerical investigations on robot manipulator systems reveal that clearance joints have severe effects on dynamic performances, necessitating the inclusion of contact force models in dynamics analysis and design . Dynamic modeling and analysis of mechanisms with joint clearance, such as revolute joints, showcase nonlinear response phenomena that impact the overall performance of mechanisms .

Answers from top 5 papers

More filters
Papers (5)Insight
Simulation of joint clearance affects performance by introducing nonlinear responses in mechanisms with rigid and flexible links, leading to dynamic variations and potential efficiency and stability challenges.
Open accessJournal ArticleDOI
Tianxi Liu, Zhengfeng Bai 
15 Apr 2021
4 Citations
Simulation of joint clearance significantly impacts the dynamic responses of robot manipulator systems, affecting both rigid and flexible links, highlighting the necessity to consider clearance effects in mechanism design.
Simulation of joint clearance effects considers contact deformations, internal friction, and damping forces, impacting dynamic processes in mechanisms with rigid and flexible links, aiding in evaluating and calculating permissible clearances.
Simulation of joint clearance effects in mechanisms with rigid and flexible links significantly influences stability, accuracy, and dynamics performance, highlighting the importance of optimizing clearances for enhanced overall performance.
Simulation of joint clearance in overconstrained linkages allows smooth movement by introducing controlled flexibility, preventing jamming. Optimal clearance position is determined for efficient mechanism performance with deformable components.

Related Questions

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.