Enhancing Jackhammer Ergonomics: Biomechanical Analysis and Added Handle Design
کد: G-1277
نویسندگان: Meisam Mataji Amirroud © ℗, Sara Aliyari Babolghani
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خلاصه مقاله:
مقدمه
This study aimed to improve the ergonomic design of jackhammers by introducing an added handle to reduce biomechanical forces on the user's body and enhance hand posture during operation. Hand-arm vibrations during jackhammer use were measured and then simulated using AnyBody Technology software to assess resulting biomechanical forces on the user's body.
مواد و روشها
Hand-arm vibrations were initially measured during jackhammer use, with the highest recorded vibration force on the hand reaching 112 N, and the maximum user-applied force on the handle being 60 N. Utilizing the average height of Iranian men (172 CM), biomechanical forces on the vertebrae, shoulders, and arms were calculated. Subsequently, an additional handle was designed based on ergonomic principles and incorporated into the jackhammer. This new handle was then employed in simulations to calculate the biomechanical forces once again.
یافتهها
Comparative analysis of the biomechanical forces revealed significant changes after integrating the new handle design. The simulation demonstrated a noteworthy reduction in forces experienced by the user's body, including the vertebrae, shoulders, and arms, compared to the forces observed with the standard jackhammer handle.
نتیجهگیری
The study underscores the potential of an added ergonomic handle in jackhammer design to substantially mitigate biomechanical forces on the user's body. By incorporating this supplementary handle, the study achieved a considerable reduction in forces experienced during jackhammer operation, thereby promoting improved ergonomics and potentially minimizing the risk of musculoskeletal injuries.
واژگان کلیدی
Jackhammer, ergonomic design, added handle, biomechanical forces, hand-arm vibration, simulation, ergonomic principles
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