Virtual Human Who Can Evaluate the Comfortability in Using a Chair and Others

The objective of this research is The development of virtual human who can evaluate comfortabilityor pain level in using of virtual product：chair, bag, bedand so on.Homogeneous hyperelastic (Mooney model) is used as a model of人类身体. Then，deformation of human body, when containing with some objectsimulated by using of FEM. For obtaining the values of characteristics at each of human body，D2 Type hardness tester is used. hardness is related to the Mooney constant as theresult of the FEM simulation for the body deformation.As the result of this simulation，train values and load distribution of the contact surface are obtained. From the experiment，the database of following relationship are made：Strain values correspond to pain leveland patterns of load distribution on the contact surface relate to comfortability.As an example，the comfortability in using of chair is actually simulated. the pain level in using of bags byforehead is also simulated ad another example In the case of the trial for the using of chair，deformation of buttocks was checked between simulation result and experiment result，there was a good coincidence confirmed.Our virtual human可以应用于模拟nursing care robot that should treat patients with appropriate conditions。

The objective of this research is the development of virtual human who can evaluate comfortability or pain level in using of virtual product : chair, bag, bed, and so on.Homogeneous hyperelastic (Mooney model) is used as a model of human body. Then, the deformation of human body, when containing with some object, is simulated by using of FEM. For obtaining the values of characteristics at each of human body, Asker CィイD22ィエD2 Type hardness tester is used. Hardness is related to the Mooney constant as the result of the FEM simulation for the body deformation.As the result of this simulation, train values and load distribution of the contact surface are obtained. From the experiment, the database of following relationship are made : Strain values correspond to pain level, and patterns of load distribution on the contact surface relate to comfortability.As an example, the comfortability in using of chair is actually simulated. The pain level in using of bags by forehead is also simulated ad another example. In the case of the trial for the using of chair, deformation of buttocks was checked between simulation result and experiment result, and there was a good coincidence confirmed.Our virtual human can be applied to the simulation of nursing care robot that should treat patients with appropriate conditions.