Response surface design of bellows parameters with negative pressure shrinkage performance

Cao, Miaolong; Zhu, Jiayi; Fu, Hao; Loic, Hesssy Yohan Franck

doi:10.1007/s12008-021-00809-6

Cited by 5 publications

(4 citation statements)

References 33 publications

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“…It can be seen that polymers such as elastomer or silicone rubber (Cao et al, 2022;Chen et al, 2021;Guanjun et al, 2017;Navas et al, 2021), dielectric elastomer (Hiruta et al, 2021), electroactive polymer (Briggs et al, 2021;Briggs et al, 2022) and thermoplastic elastomer (TPE) (Cao et al, 2022) have been the material most used with eight articles using them in their works.…”

Section: Publication Distribution By Materialsmentioning

confidence: 99%

A Systematic Review of Soft Actuators in Agriculture

Mhd Yusoff,

Mohd Faudzi

2023

Adv Agric Food Res J

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Industrial machines and robots use actuators to facilitate repetitive tasks. Conventionally, stiff actuators are used to enable precise position control in a high-pace system. They are usually placed in human-free environments because of safety concerns as they do not comply in a collision. On the other hand, there has been a growing interest in human-robot interactions that require robots to be placed alongside humans. These applications need a soft actuator. An example of a soft actuator is a pneumatic muscle actuator (PMA) which produces a one-way motion and force as a result of the muscle’s contraction under air pressure. In this paper, the aim is to present a systematic review covering the main published solutions of soft actuators including PMA in agricultural applications. This paper provides a useful foundation on the soft actuators, their main applications in agriculture, their challenges and opportunities, as well as supporting new research works in the soft actuators' field.

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Section: Publication Distribution By Materialsmentioning

confidence: 99%

A Systematic Review of Soft Actuators in Agriculture

Mhd Yusoff,

Mohd Faudzi

2023

Adv Agric Food Res J

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“…A previous study identified factors affecting bellows displacement and contraction through simulations [26]. This paper design a dual-chamber flexible bellows isolator (D-CFBI) with Thermoplastic Elastomer (TPE) material to achieve cost-effectiveness, reliability, and environmental adaptability.…”

Section: Introductionmentioning

confidence: 99%

Flexibility Analysis and Experimental Design of Dual-Chamber Bellows Isolator for Low-Frequency Damping Performance

Cao

Sun

Du³

et al. 2023

IEEE Access

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To achieve an effective and versatile solution for reducing vibrations and reducing maintenance costs, the dual-chamber flexible bellows isolator (D-CFBI) of rubber material is designed. The outer chamber of D-CFBI is used as an actuator to change its own variable stiffness and control the feedback force by filling negative pressure gas. The inner chamber is used as a rubber air spring to work as the main vibration isolation element. Under different loads and sinusoidal excitation forces, the damping characteristics and damping effects of the D-CFBI with different stiffness are investigated. By exciting the isolator, the frequency sweep experiment is carried out, the dynamic flexibility in the initial state is studied, and a preload of the D-CFBI is given to change the stiffness of the D-CFBI, and the changing trend between restoring force and amplitude and frequency is found out. Conclusions can be summarized that increasing the preload of the D-CFBI leads to increased stiffness and better damping effect. For compression amounts of 20% and frequencies higher than 7Hz or amplitudes lower than 2mm, the damping effect is also better. Consequently, this D-CFBI offers satisfactory damping and increased safety at low amplitudes and frequencies. To achieve optimal damping, it is recommended to adjust the stiffness of the driver.

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“…Another design approach, known as granular jamming [23], employs a donut-shaped structure with two chambers controlled by air pressure and vacuum to enclose objects, enabling the gripping of various sizes and shapes. Gao et al [24] introduced a telescopic design with passive retraction and a gripping force of 14 N. On the other hand, the pneumatic bellow actuator [25][26][27] relies on rapid deformation responses achieved through compression and friction forces to grip objects. This design allows for direct control of deformation by adjusting the air pressure and is simpler to cast as a single chamber component.…”

Section: Introductionmentioning

confidence: 99%

“…In the context of soft actuator applications, Cao et al [26] introduced the Box-Behnken design to optimize the parameters of a double-chamber bellow actuator, validating the displacement response through experimental data. Honarpardaz M. [31] utilized the Latin Hypercube Sampling Design with a full quadratic model to optimize the design of PenuNets, focusing on minimizing stress while maximizing the gripper's payload.…”

Section: Introductionmentioning

confidence: 99%

An Optimized Design of the Soft Bellow Actuator Based on the Box–Behnken Response Surface Design

et al. 2023

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Soft actuator technology is extensively utilized in robotic manipulation applications. However, several existing designs of soft actuators suffer from drawbacks such as a complex casting process, a multi-air chamber configuration, and insufficient grasping force. In this study, we propose a novel soft bellow design featuring a single air chamber, which simplifies the fabrication process of the actual model. To enhance the performance of the proposed design, we employ the Box–Behnken response surface design to generate a design matrix for implementing different levels of design factors in the finite element model. The FEA response is then subjected to an analysis of variance to identify significant factors and establish a regression model for deformation and stress response prediction. Among the considered responses, the wall thickness emerges as the most influential factor, followed by the divided ratio of radians and the number of bellows. Validation of the optimized soft bellow actuator’s deformation response is performed through comparison with experimental data. Moreover, the soft bellow actuator is capable of exerting a pulling force of 8.16 N when used in conjunction with a simple gripper structure design, enabling effective object manipulation. Additionally, the soft bellow design boasts cost-effectiveness and easy moldability, facilitating seamless integration with different gripper frames for diverse applications. Its simplicity and versatility make it a promising choice for various robotic manipulation tasks.

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Response surface design of bellows parameters with negative pressure shrinkage performance

Cited by 5 publications

References 33 publications

A Systematic Review of Soft Actuators in Agriculture

A Systematic Review of Soft Actuators in Agriculture

Flexibility Analysis and Experimental Design of Dual-Chamber Bellows Isolator for Low-Frequency Damping Performance

An Optimized Design of the Soft Bellow Actuator Based on the Box–Behnken Response Surface Design

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