A Computational Stress Analysis of Active Prosthetic Hand “Asto Hand V4” for the Loaded Hook Position

Upper limb disabilities become a serious concern in Indonesia. By that, an active prosthetic hand become a market demand. There were already active prosthetic hand products in the market, which most of them were manufactured by other countries, yet they rarely fit to Indonesian citizen, neither for the price nor the size. Based in these problem, Diponegoro University conducted research on active prosthetic hand to provide solution for the problem that currently faced by the Indonesian citizen especially for trans-radial amputee patient. Asto Hand V4 was expected to be useful and suitable for Indonesian, in terms of price and size. In order to ensure the reliability of the product, the design safety becomes the main concern in the development. This paper investigated the capability of the Asto Hand under the hook load using a computational stress analysis. Based on the finite element analysis for the hook position, it was known that the lowest safety factor in Asto Hand V4 was occur in palm component with the value 2.17. The study concludes that Asto Hand V4 was capable to withstand the load during hook position and it can be declared that Asto Hand V4 is safe to perform hook position.