图示机构中CDFE和EFHG均为平行四边形,则机构的自由度为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/bd5471edf99c4e5384879b10c4950679.png
举一反三
- 图示机构中存在复合铰链。( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/fbe3d03b5a964e59a5d4a0dd098018e3.png
- 图示机构包含( )个运动副。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/fd2ee875dc20415d8e5f4e90935ddd35.png
- 图示机构包含( )个构件。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/6784998e26b549fb978aad5f69205870.png
- 机构运动简图中移动副的表示方法为( )。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/dc7906d4abaf4ab3a8dbf945b886f347.jpg"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/7c42a1c2c5d14c72a0f9dec5e05d3583.jpg"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/b00d698699ba4c3bbc6c0d588835f8fe.jpg">
- 图示铰链四杆机构中,所标数字代表杆长,单位为cm,则该机构属于铰链四杆机构中的曲柄摇杆机构。 ( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201705/e80403ac573a45dbbb85d62717467a07.jpg