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Yang F.,State Key Laboratory of Robot Technology and System | Yang F.,Harbin Institute of Technology | Tao J.,State Key Laboratory of Robot Technology and System | Tao J.,Harbin Institute of Technology | And 4 more authors.
Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | Year: 2014

To make the designed rover have self-adaptability and better contact with ground, DOFs required for single suspension system and the whole rover are studied. Three classification ways of self-adaptability are given, and the relationship between self-adaptability and climbing performance, stability, energy consumption is analyzed. Mathematic model of single wheel-suspension system is established and such system's DOF is obtained. Based on aforementioned analysis, mathematic models of double, three and k wheel-suspension system are established respectively with calculated DOFs for these systems. Two DOF models for wheeled rover are given followed by DOF statistics and analysis of some representative self-adaptive rovers. The analysis shows that self-adaptability is the basis for realizing comprehensive performance of the locomotion mechanism. DOFs for single suspension system and rover are 1 and 3, respectively. The conclusion has universalism and can determine required DOFs for structural synthesis of wheeled rover.

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