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114618

PLANNING FORM-CLOSURE GRASPS OF 2D OBJECTS FOR ROBOTIC HANDS

Article

Last updated: 26 Dec 2024

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Subjects

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Tags

Electrical Engineering, Computer Engineering and Electrical power and machines engineering.

Abstract

Grasp planning is the problem of finding the contact locations and the forces to apply by the fingers on the object surface to grasp it. This work proposes a new technique that solves a simplified version, (2-D), of this planning problem. This technique is used for planning form-closure grasps. In this type of grasp, the fingers surround the object and hold it securely against the palm. It could be used successfully to restrain the object with minimum concern about the applied forces even when the coefficient of friction is small. Instead of using shape primitives or hand preshapes to simplify the problem solution, this work suggests an optimization technique. This technique searches for the maximum value of a Grasp Quality Metric ( ) which corresponds to the best form-closure grasp. To find this value, the proposed technique requires the development of two algorithms. The first one generates a grasp for a given object at a specific approach angle of the robotic hand, and it is called the Grasp Generator. The second one is called the Search Algorithm. This algorithm explores all approach angles for the best grasp. The outputs of this algorithm are the position and the orientation of the palm and the joint angles of the fingers at the best grasp. The proposed method is used for a two-fingered robotic hand with eight degrees of freedom, and it is implemented and tested on a wide variety of 2D objects. The results show the effectiveness of the method to achieve the planning of form-closure grasps of any 2D object.

DOI

10.21608/jesaun.2012.114618

Keywords

Anthropomorphic Robotic Hand, Enveloping Grasp, Form- Closure Grasp, Grasp Planning, and Grasp Quality Metric

Authors

First Name

Khaled M.

Last Name

Shaaban

MiddleName

-

Affiliation

Electrical Engineering Department, Assiut University, Assiut, Egypt.

Email

-

City

-

Orcid

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First Name

Hesham A.

Last Name

Mohamed

MiddleName

-

Affiliation

Electrical Engineering Department, Assiut University, Assiut, Egypt.

Email

-

City

-

Orcid

-

Volume

40

Article Issue

No 6

Related Issue

16872

Issue Date

2012-11-01

Receive Date

2012-08-04

Publish Date

2012-11-01

Page Start

1,759

Page End

1,780

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 40_Issue No 6_Pages 1759-1780.pdf

PDF . 369.0kB

Link

https://jesaun.journals.ekb.eg/article_114618.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114618

Order

12

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

PLANNING FORM-CLOSURE GRASPS OF 2D OBJECTS FOR ROBOTIC HANDS

Details

Type

Article

Created At

23 Jan 2023