The Mechanics of Spiral Springs and Its Application in TimekeepingSource: Journal of Applied Mechanics:;2014:;volume( 081 ):;issue: 003::page 34504DOI: 10.1115/1.4024669Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Spiral spring is widely used in mechanisms, such as mechanical watch movements and clocks where the spiral spring is used for timekeeping. According to literature, there are only a few studies on spiral springs. In this paper, the mechanics of spiral springs is analyzed in details, and its dynamic performance in mechanical watch movements is further studied to find out its natural frequency, which is the most critical parameter for mechanical watch movements. Based on Castigliano's theorem, the mathematical model of dynamic deformation and natural frequency of the spiral spring under external axial torque is developed, and computer simulation with Matlabآ® is also conducted. Experimental validations are carried out, which confirm the simulation results. Experiments show that the analytical method in this paper can be used to guide and facilitate the design of spiral spring.
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| contributor author | Xie, Longhan | |
| contributor author | Ko, Puihang | |
| contributor author | Du, Ruxu | |
| date accessioned | 2017-05-09T01:04:44Z | |
| date available | 2017-05-09T01:04:44Z | |
| date issued | 2014 | |
| identifier issn | 0021-8936 | |
| identifier other | jam_081_03_034504.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/153780 | |
| description abstract | Spiral spring is widely used in mechanisms, such as mechanical watch movements and clocks where the spiral spring is used for timekeeping. According to literature, there are only a few studies on spiral springs. In this paper, the mechanics of spiral springs is analyzed in details, and its dynamic performance in mechanical watch movements is further studied to find out its natural frequency, which is the most critical parameter for mechanical watch movements. Based on Castigliano's theorem, the mathematical model of dynamic deformation and natural frequency of the spiral spring under external axial torque is developed, and computer simulation with Matlabآ® is also conducted. Experimental validations are carried out, which confirm the simulation results. Experiments show that the analytical method in this paper can be used to guide and facilitate the design of spiral spring. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Mechanics of Spiral Springs and Its Application in Timekeeping | |
| type | Journal Paper | |
| journal volume | 81 | |
| journal issue | 3 | |
| journal title | Journal of Applied Mechanics | |
| identifier doi | 10.1115/1.4024669 | |
| journal fristpage | 34504 | |
| journal lastpage | 34504 | |
| identifier eissn | 1528-9036 | |
| tree | Journal of Applied Mechanics:;2014:;volume( 081 ):;issue: 003 | |
| contenttype | Fulltext |