School of Mechanical Engineering Dalian University of Technology Dalian 116024 China;
School of Mechanical Engineering Dalian University of Technology Dalian 116024 China;
School of Mechanical Engineering Dalian University of Technology Dalian 116024 China;
School of Mechanical Engineering Dalian University of Technology Dalian 116024 China;
bucket wheel reclaimer; co-design; energy-minimum optimization; sequential strategy;