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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 发表日期：2018    内容类型：专利     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Friction stir additive manufacturing machine, has blocker plate which is metal plate fixed around powder outlet and carries out translational movement with main structure of device to prevent metal powder from overflowing. 专利 申请日期: 2018-01-01, 公开日期: 2018-06-15 作者:  ZHANG Z YUAN H TAN Z YAO X GE P LI 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/02 Space grid structure distributed built-in type impact damper for use in seismic and wind field, has mass block and guide rod provided with sliding ball that slides along guide rod for reducing friction, and plate fixedly linked to guide rod. 专利 申请日期: 2018-01-01, 公开日期: 2018-05-04 作者:  DUAN Y HUO L SONG G 收藏  |  浏览/下载：3/0  |  提交时间：2019/12/02 Design method of reducing spindle-impeller assembly stress and spindle bending deformation, involves selecting best match with spindle-impeller ring groove shape and size from contact pressure and transmission of friction torque. 专利 申请日期: 2018-01-01, 公开日期: 2018-02-16 作者:  BAO C GUO F LIU X MA G WANG X WU C 收藏  |  浏览/下载：12/0  |  提交时间：2019/12/02 Ship-mounted device damping device for large-amplitude single-degree-of-freedom low-frequency rocking, has fixed and movable supporting part for forming friction pair, where fixed part is connected with center of gravity of movable part. 专利 申请日期: 2018-01-01, 公开日期: 2018-03-13 作者:  HUANG Y WANG W HUO H LIU C ZHANG Q 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/02 Prefabricated assembly-type building anti-buckling steel plate shear wall, has beam connection piece formed with long circular bolt hole, and beam connection piece and frame beam connected with friction-type high-strength bolt. 专利 申请日期: 2018-01-01, 公开日期: 2018-03-23 作者:  AN Y ZHOU G OU J 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/02 Space grid structure distributed built-in-tuned mass damper, has connecting spring and viscous damper connected together to form collision system, and guide rod provided with sliding ball for reducing friction. 专利 申请日期: 2018-01-01, 公开日期: 2018-05-04 作者:  DUAN Y HUO L SONG G 收藏  |  浏览/下载：6/0  |  提交时间：2019/12/02