An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System
In order to investigate the effects of hand-arm posture, grip force, push force, and vibration excitation intensity on the mechanical impedance of human hand-arm system, a test system with a self-developed vibration handle has been prepared. Based on the testing system, the mechanical impedance of t...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9967278 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850212392132149248 |
|---|---|
| author | Wenjie Zhang Qichao Wang Zheng Xu Hongmei Xu Hang Li Jiajun Dong Xinbo Ma |
| author_facet | Wenjie Zhang Qichao Wang Zheng Xu Hongmei Xu Hang Li Jiajun Dong Xinbo Ma |
| author_sort | Wenjie Zhang |
| collection | DOAJ |
| description | In order to investigate the effects of hand-arm posture, grip force, push force, and vibration excitation intensity on the mechanical impedance of human hand-arm system, a test system with a self-developed vibration handle has been prepared. Based on the testing system, the mechanical impedance of the hand-arm system of seven Chinese adult males were tested and calculated under the random vibration excitation with the frequency of 10–1000 Hz. The results reveal that when the frequency is lower (<40 Hz), the hand-arm system with an elbow angle of 180o produces a higher mechanical impedance; when the frequency ranges from 40 Hz to 100 Hz, the hand-arm system with an elbow angle of 90o generates a higher mechanical impedance; while when the frequency is higher (>100 Hz), the hand-arm posture seems to have no obvious effect on the mechanical impedance. Higher grip or push force would increase the frequency corresponding to the peak value of the mechanical impedance and often correspond to a higher mechanical impedance in a specific frequency range (30–200 Hz). When the frequency is lower (<140 Hz), vibration intensity has certain effects on the mechanical impedance of the hand-arm system. In conclusion, vibration intensity does not directly affect the mechanical impedance, but an increase in grip or push force often causes an increase in mechanical impedance and a higher frequency that corresponds to the peak of mechanical impedance. |
| format | Article |
| id | doaj-art-8eebdbd8432e44708e1117531254abe2 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-8eebdbd8432e44708e1117531254abe22025-08-20T02:09:21ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99672789967278An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm SystemWenjie Zhang0Qichao Wang1Zheng Xu2Hongmei Xu3Hang Li4Jiajun Dong5Xinbo Ma6College of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaSchool of Intelligent Manufacturing, Nanyang Institute of Technology, Nanyang 473004, ChinaIn order to investigate the effects of hand-arm posture, grip force, push force, and vibration excitation intensity on the mechanical impedance of human hand-arm system, a test system with a self-developed vibration handle has been prepared. Based on the testing system, the mechanical impedance of the hand-arm system of seven Chinese adult males were tested and calculated under the random vibration excitation with the frequency of 10–1000 Hz. The results reveal that when the frequency is lower (<40 Hz), the hand-arm system with an elbow angle of 180o produces a higher mechanical impedance; when the frequency ranges from 40 Hz to 100 Hz, the hand-arm system with an elbow angle of 90o generates a higher mechanical impedance; while when the frequency is higher (>100 Hz), the hand-arm posture seems to have no obvious effect on the mechanical impedance. Higher grip or push force would increase the frequency corresponding to the peak value of the mechanical impedance and often correspond to a higher mechanical impedance in a specific frequency range (30–200 Hz). When the frequency is lower (<140 Hz), vibration intensity has certain effects on the mechanical impedance of the hand-arm system. In conclusion, vibration intensity does not directly affect the mechanical impedance, but an increase in grip or push force often causes an increase in mechanical impedance and a higher frequency that corresponds to the peak of mechanical impedance.http://dx.doi.org/10.1155/2021/9967278 |
| spellingShingle | Wenjie Zhang Qichao Wang Zheng Xu Hongmei Xu Hang Li Jiajun Dong Xinbo Ma An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System Shock and Vibration |
| title | An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System |
| title_full | An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System |
| title_fullStr | An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System |
| title_full_unstemmed | An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System |
| title_short | An Experimental Study of the Influence of Hand-Arm Posture and Grip Force on the Mechanical Impedance of Hand-Arm System |
| title_sort | experimental study of the influence of hand arm posture and grip force on the mechanical impedance of hand arm system |
| url | http://dx.doi.org/10.1155/2021/9967278 |
| work_keys_str_mv | AT wenjiezhang anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT qichaowang anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT zhengxu anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT hongmeixu anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT hangli anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT jiajundong anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT xinboma anexperimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT wenjiezhang experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT qichaowang experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT zhengxu experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT hongmeixu experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT hangli experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT jiajundong experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem AT xinboma experimentalstudyoftheinfluenceofhandarmpostureandgripforceonthemechanicalimpedanceofhandarmsystem |