About using PointActuator to simulate object weight
Posted: Mon Dec 04, 2023 2:34 am
Dear All,
I conducted some simulations of object lifting using hands; the locomotion type is stooping; during locomotion, the human model lift an object of 5kg with two hands. Specifcally, PointActuators are applied to simulate object gravity. The details are as follows:
May I know whether the above definition of object weight is feasible?
Actually, the results of baseline (without object) and with object are compared; it showed that the back muscle force is larger in baseline condition. It is abnormal. Therefore, it seems that there should be problems about the modeling of object weight. Thanks. Yuan
I conducted some simulations of object lifting using hands; the locomotion type is stooping; during locomotion, the human model lift an object of 5kg with two hands. Specifcally, PointActuators are applied to simulate object gravity. The details are as follows:
Code: Select all
<PointActuator name="object_l">
<body>hand_l </body>
<point> 0.00000000000000000000 0.00000000000000000000 0.00000000000000000000 </point>
<point_is_global> false </point_is_global>
<direction> 0.00000000000000000000 -1.00000000000000000000 -0.00000000000000000000 </direction>
<force_is_global> true </force_is_global>
<optimal_force> 1 </optimal_force>
</PointActuator>
<PointActuator name="object_r">
<body>hand_r </body>
<point> 0.00000000000000000000 0.00000000000000000000 0.00000000000000000000 </point>
<point_is_global> false </point_is_global>
<direction> 0.00000000000000000000 -1.00000000000000000000 -0.00000000000000000000 </direction>
<force_is_global> true </force_is_global>
<optimal_force> 1 </optimal_force>
</PointActuator>Actually, the results of baseline (without object) and with object are compared; it showed that the back muscle force is larger in baseline condition. It is abnormal. Therefore, it seems that there should be problems about the modeling of object weight. Thanks. Yuan