山东理工大学理学院应用数学所,淄博255049;
大连理工大学工业装备结构分析国家重点实验室,大连116024;
山东理工大学理学院应用数学所,淄博255049;
Institute of Construction and Architecture, Slovak Academy of Sciences, Bratislava 84503, Slovakia;
Institute of Construction and Architecture, Slovak Academy of Sciences, Bratislava 84503, Slovakia;