On discontinuous dynamics of a 2-DOF oscillator with an one-sided rigid obstacle
| Autor: | Shoulian Chen, Zhaoxia Yang, Chenjing Dou, Jinjun Fan, Chunliang Li, Jing Cao |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Dry friction Applied Mathematics Mechanical Engineering Mathematical analysis Dynamics (mechanics) Phase (waves) Motion (geometry) 02 engineering and technology 021001 nanoscience & nanotechnology 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials One sided Obstacle 0210 nano-technology |
| Zdroj: | International Journal of Non-Linear Mechanics. 118:103261 |
| ISSN: | 0020-7462 |
| DOI: | 10.1016/j.ijnonlinmec.2019.103261 |
| Popis: | A 2-DOF (two-degree-of-freedom) oscillator with an one-sided rigid obstacle in the presence of dry friction and external excitations is presented. Based on friction and the unilateral rigid barrier, the different motions for the masses, i.e., free-flight or nonstick, stick, stuck and impact motions, are discussed, and the different domains are obtained by partitioning the phase spaces. Then the analytical conditions are given for the switching of the above mentioned four motion states. By defining mapping structures and different generic mappings, the periodic motions of this system are developed. Numerical simulations are used to study the grazing, stick, nonstick, stuck and specified periodic motions. The investigation on such system is of great significance to the optimization design of engineering systems with one-sided rigid obstacle. |
| Databáze: | OpenAIRE |
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