1. Key Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceCenter for X‐MechanicsDepartment of Engineering MechanicsZhejiang University Hangzhou 310027 China
2. State Key Laboratory of Fluid Power & Mechatronic SystemZhejiang University Hangzhou 310027 China
3. Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceSchool of Mechanical EngineeringZhejiang University Hangzhou 310027 China