To reduce sending costs,a flexible wheel configuration is proposed.The wheel is made of titanium alloy(Ti-6Al-4V)in consideration of the planetary environment factors(i.e.strong radiation,big temperature differences,high vacuum),and mass constraint of launch vehicle.The advantages of the proposed wheel involves the potential for:① small sending volume and mass,② large deployed area and volume to reduce wheel loading,③ a damping effect to smooth motion on rough terrain.To study the trafficability and tractive performance of the wheel concept,the drawbar pull and driven torque were calculated based on simplified model of terramechanics formulations.The results show that the wheel possesses sufficient drawbar pull to negotiate all types of soil stratums listed in this contribution.
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机译：Response to 'letter to the editor: 'Design of an integrated climatic assessment indicator (ICAI) for wheat production: A case study in Jiangsu Province, China' by Xiangying Xu, ping Gao, Xinkai Zhu, Wenshan Guo, Jinfeng Ding, Chunyan Li, Min Zhu, Xuanwei Wu'
机译：古民居的卫浴设施适应性设计模式与创作——以泉州蔡氏古民居「德棣厝」为例 =Adaptability Design Pattern and Creation of Sanitary Facilities in Ancient Dwellings—A Case Study of “De Di House” in Cai’s Ancient Residential Buildings of Quanzhou
