Simulation and Ergonomic Evaluation of Welders' Standing Posture Using Jack Software.

Ergonomics research strives to make workers' labor more efficient, safer, and more comfortable. Therefore, six digital humans and welding torch model were built and evaluated based on the Jack software in order to improve the ergonomics of welders' standing postures. Three sets of standing welding actions were designed: walking, raising arm, and contracting arm.