Landmark effect in Digital Human Model simulation tasks by using the biomorphic tool

Abstract

Digital Human Model (DHM) plays an important role in the design field, and transforming a static DHM into a dynamic model is a critical issue for the application. Anthropometric landmarks are easily visualized by showing the landmark locations on the body. It is a natural extension to create three dimension (3D) illustrations of the landmarks by placing them on 3D computer generated bodies. Our objective was to create a 3D anthropometric glossary to provide non-professionals a simple way of introducing anthropometric concepts. In addition the anthropometry standards community can use these 3D illustrations to facilitate communications among their members. This study was to develop a DHM model, and use this new biomorphic tool to simulate the postures of the real people. Sixty-two individuals were measured, 31 female and 31 male. Fours scanning models were obtained to be the standard models. The resulting biomorphic tool can be used to simulate postures, and then compare simulated postures with the standard models. Results show that sitting postures require change of position of three joints of the lower body, thus increasing the distance error compared to the standard posture. The distance error with non-landmarks is larger than the posture with landmarks, but all the simulated shapes provided by the biomorphic tool almost fit the standard scanning postures. The biomorphic simulation still shows postures similar to the real body, and attempts to simulate the real postures with the different products. This research will help improve the application of DHM to product design.

DHM an Aid for Virtual Ergonomics of Manufacturing Shop Floor: A Review with Reference to Industrially Developing Countries

“…Digital human modeling technology has also now been used in industrially developing countries like Brazil, China, Taiwan, India, South Korea, Thailand and Egypt [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25]. It is to be noted that Taiwan and South Korea are recently being categorized as graduated developing/advanced economies.…”

“…Biomechanical singular action and push pull analysis with load definition was utilized in a descriptive study to judge pushing and pulling job (with load carrying) in industrial sector [10]. Intention of another novel study with focus on product design was to build up virtual human models, along with a new biomorphic tool to simulate postures of actual humans [15]. Daily activities in a residential environment (accessing locks, use of bathroom, opening of doors and drawers of furniture) were investigated in a virtual environment for studying accessibility in a social housing project [10].…”