Article(id=1244340204719424445, tenantId=1146029695717560320, journalId=1244295746212642849, issueId=1244340201636610993, articleNumber=null, orderNo=null, doi=10.11776/j.issn.1000-4939.2025.06.020, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1675440000000, receivedDateStr=2023-02-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774603423528, onlineDateStr=2026-03-27, pubDate=1765728000000, pubDateStr=2025-12-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774603423528, onlineIssueDateStr=2026-03-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774603423528, creator=13701087609, updateTime=1774603423528, updator=13701087609, issue=Issue{id=1244340201636610993, tenantId=1146029695717560320, journalId=1244295746212642849, year='2025', volume='42', issue='6', pageStart='1207', pageEnd='1446', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774603422792, creator=13701087609, updateTime=1774603751062, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1244341578555306992, tenantId=1146029695717560320, journalId=1244295746212642849, issueId=1244340201636610993, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1244341578555306993, tenantId=1146029695717560320, journalId=1244295746212642849, issueId=1244340201636610993, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1410, endPage=1417, ext={EN=ArticleExt(id=1244340205801554907, articleId=1244340204719424445, tenantId=1146029695717560320, journalId=1244295746212642849, language=EN, title=Modeling and analysis of the passive dynamic walker of flexible legged rimless wheel, columnId=1244340204216107958, journalTitle=Chinese Journal of Applied Mechanics, columnName=Dynamic and Control, runingTitle=null, highlight=null, articleAbstract=
The modeling of the passive dynamic walker of flexible legged rimless wheel is studied, and the influence of damping coefficient on system dynamics is analyzed. According to the geometric characteristics of the walker, the independent generalized coordinates are selected to describe the position of the system, and the second kind of Lagrange equation is used to establish the dynamic model of the passive dynamic walker of flexible legged rimless wheel. By analyzing the structure and physical properties of the flexible leg, it is concluded that the impact occurs in the tangential direction of the telescopic leg and the impact force is not transmitted between the leg and the ground in the radial direction during the impact stage, and a state jump model under the assumption of partial impact is proposed. The numerical simulation of passive dynamic walking of flexible legged rimless wheels using different damping parameters verifies the effective-ness of the proposed method. When a larger damping coefficient is selected, the double-limb support period of periodic walking accounts for 77.6% of the whole walking cycle, while the single-limb support period accounts for 22.4% of the whole walking cycle. The periodic walking can be achieved when the slope angle is in the range of 0.1-0.7 rad. The slope angle of the flexible legged rimless wheel that can passively and dynamically walk on decreases as the damping coefficient decreases.
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研究柔性腿无缘轮被动动态行走器建模,并分析阻尼系数对系统动力学的影响。根据行走器的几何特征,选择独立广义坐标描述系统的位置,使用第二类拉格朗日方程建立柔性腿无缘轮被动动态行走器的动力学模型。对柔性腿的结构和物理性质进行分析,得到腿与地面的冲击阶段伸缩腿的切向发生冲击,而径向不传递冲击力的结论,并提出部分冲击假设条件下的状态跳变模型。采用不同的阻尼参数进行柔性腿无缘轮被动动态行走的数值仿真,结果验证了所提方法的有效性。选择较大的阻尼系数,周期行走的双支撑阶段占整个行走周期的77.6%,单支撑阶段占整个行走周期的22.4%,斜坡角度在0.1~0.7 rad范围内可以实现周期行走。柔性腿无缘轮可被动动态行走的斜坡角度,随着阻尼系数的减小而减小。
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Design drawing of rimless wheel with flexible legs, figureFileSmall=nEjRQoTAqqJShhAGfp0Ukw==, figureFileBig=mXnmKYWKoox6dtkUn4b5Vg==, tableContent=null), ArticleFig(id=1244340231319700218, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图1, caption=
柔性腿无缘轮设计图, figureFileSmall=nEjRQoTAqqJShhAGfp0Ukw==, figureFileBig=mXnmKYWKoox6dtkUn4b5Vg==, tableContent=null), ArticleFig(id=1244340231659438870, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.2, caption=
Simplified model of flexible legged rimless wheel, figureFileSmall=GNKAZFCRccqlqpQfBCL+aA==, figureFileBig=JSa+i2vOrZ4IRvjIOgHZUw==, tableContent=null), ArticleFig(id=1244340231755907874, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图2, caption=
柔性腿无缘轮简化模型, figureFileSmall=GNKAZFCRccqlqpQfBCL+aA==, figureFileBig=JSa+i2vOrZ4IRvjIOgHZUw==, tableContent=null), ArticleFig(id=1244340231873348398, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.3, caption=
Sketch map of single-limb support, figureFileSmall=CSEnxKMm5OtRAOme6OqAzQ==, figureFileBig=0bYIGTsu0N6OYUafFmOzcw==, tableContent=null), ArticleFig(id=1244340232007566136, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图3, caption=
单支撑阶段示意图, figureFileSmall=CSEnxKMm5OtRAOme6OqAzQ==, figureFileBig=0bYIGTsu0N6OYUafFmOzcw==, tableContent=null), ArticleFig(id=1244340232150172487, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.4, caption=
Sketch map of double-limb support, figureFileSmall=y1SK3S1sMCdhcRRJrMec/A==, figureFileBig=nrigNCbmvJDhVTln901Prw==, tableContent=null), ArticleFig(id=1244340232288584532, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图4, caption=
双支撑阶段示意图, figureFileSmall=y1SK3S1sMCdhcRRJrMec/A==, figureFileBig=nrigNCbmvJDhVTln901Prw==, tableContent=null), ArticleFig(id=1244340232422802269, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.5, caption=
Sketch map of collision phase, figureFileSmall=BcBDQt/93W5l6fGDwIx6OA==, figureFileBig=UlZGvQOgvkHlzMhI1Udvag==, tableContent=null), ArticleFig(id=1244340232531854183, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图5, caption=
地面冲击阶段示意图, figureFileSmall=BcBDQt/93W5l6fGDwIx6OA==, figureFileBig=UlZGvQOgvkHlzMhI1Udvag==, tableContent=null), ArticleFig(id=1244340232632517488, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.6, caption=
Phase diagram of leg angnlar, figureFileSmall=2g/YYksnyxAWJpyOh4V/hw==, figureFileBig=X86A1SOHqU+rs5BnPnl37Q==, tableContent=null), ArticleFig(id=1244340232737375095, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图6, caption=
腿角度的相平面图, figureFileSmall=2g/YYksnyxAWJpyOh4V/hw==, figureFileBig=X86A1SOHqU+rs5BnPnl37Q==, tableContent=null), ArticleFig(id=1244340232842232704, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.7, caption=
Leg angular and angular velocity time curve, figureFileSmall=lY+w4/zzb4vYb2fsRN8bew==, figureFileBig=F9arWmkf2J7PhBNijgRb0w==, tableContent=null), ArticleFig(id=1244340232926118790, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图7, caption=
腿角度和角速度时间曲线, figureFileSmall=lY+w4/zzb4vYb2fsRN8bew==, figureFileBig=F9arWmkf2J7PhBNijgRb0w==, tableContent=null), ArticleFig(id=1244340233068725133, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.8, caption=
Leg length and stretch velocity time curve, figureFileSmall=dC1l5JEape0R/viqImeOsw==, figureFileBig=qhuwligr5Am1t/HZlXKXOA==, tableContent=null), ArticleFig(id=1244340234595451796, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图8, caption=
腿长度和速度时间曲线, figureFileSmall=dC1l5JEape0R/viqImeOsw==, figureFileBig=qhuwligr5Am1t/HZlXKXOA==, tableContent=null), ArticleFig(id=1244340234712892313, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Fig.9, caption=
Normal ground reaction force, figureFileSmall=Hf+mGzbcRFxmvwKoMLQs2Q==, figureFileBig=tNlYsMd7NiQ9y5iNEyTORQ==, tableContent=null), ArticleFig(id=1244340234838721437, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=图9, caption=
地面法向支撑反力, figureFileSmall=Hf+mGzbcRFxmvwKoMLQs2Q==, figureFileBig=tNlYsMd7NiQ9y5iNEyTORQ==, tableContent=null), ArticleFig(id=1244340234972939170, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Tab.1, caption=
Parameter settings of system simulation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | mH/kg | α/rad | φ/rad | l0/m | K/(N•m-1) | C/(Ns•m-1) |
|---|
| 数值 | 18 | π/4 | 0.2 | 1 | 1 000 | 100 |
), ArticleFig(id=1244340235111351212, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=表1, caption=
系统仿真参数表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | mH/kg | α/rad | φ/rad | l0/m | K/(N•m-1) | C/(Ns•m-1) |
|---|
| 数值 | 18 | π/4 | 0.2 | 1 | 1 000 | 100 |
), ArticleFig(id=1244340235232986039, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Tab.2, caption=
Impact energy loss(
)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 步数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
| 冲击能量损失量/J | 6.182 5 | 2.892 6 | 2.871 6 | 2.465 1 | 2.253 3 | 2.004 9 | 1.871 0 | 1.665 6 | 1.617 4 | 1.624 4 |
), ArticleFig(id=1244340235371398080, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=表2, caption=
冲击能量损失量(
)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 步数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
| 冲击能量损失量/J | 6.182 5 | 2.892 6 | 2.871 6 | 2.465 1 | 2.253 3 | 2.004 9 | 1.871 0 | 1.665 6 | 1.617 4 | 1.624 4 |
), ArticleFig(id=1244340235501421513, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=EN, label=Tab.3, caption=
Impact energy loss(
)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 步数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
| 冲击能量损失量/J | 1.919 6 | 4.339 3 | 4.220 2 | 3.567 7 | 3.043 9 | 2.351 8 | 2.006 6 | 1.866 8 | 1.664 2 | 1.617 4 |
), ArticleFig(id=1244340235602084817, tenantId=1146029695717560320, journalId=1244295746212642849, articleId=1244340204719424445, language=CN, label=表3, caption=
冲击能量损失量(
)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 步数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
| 冲击能量损失量/J | 1.919 6 | 4.339 3 | 4.220 2 | 3.567 7 | 3.043 9 | 2.351 8 | 2.006 6 | 1.866 8 | 1.664 2 | 1.617 4 |
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