Abstract
Although linear motor has vital and potential applications in air compressors, hydraulic pumps, earphones and electric vehicles because of its good reliability, high power density and convenient maintenance, most researchers rarely concentrate on the dynamic performance of the linear oscillating motor with external force loads. It is essential to study the dynamic performance of the linear oscillating motor with accurate and multi-mode force loads. In this paper, a novel linear oscillating loading system is proposed and the loading system structure is depicted. Then, a mathematical model is built to match the simulation analyses of the dynamic performance of the linear oscillating motor with multi-mode external force loads. Moreover, the linear oscillating loading system platform is built and experiments are undertaken to verify the simulation analyses about the dynamic performance and efficiency with respect to different external force loads, and the simulation and experimental results show good agreement and will have promising significance for linear oscillating motor research and applications.
Highlights
The concept of more electric aircraft was proposed for the replacement of centralized hydraulic power systems with distributed power-by-wire systems because of the promising benefits of higher reliability, increased dynamic performance, convenient maintainability, weight reduction and easier manufacture
We propose the idea of a linear-driven electrical hydraulic actuator (LEHA) which is required to be of high frequency and large output force
The linear pump is driven by a linear oscillating motor (LOM), as shown in Figure 1, so it is of great importance to have detailed research on the LOM, especially on the dynamic performance of the LOM with external force loads
Summary
The concept of more electric aircraft was proposed for the replacement of centralized hydraulic power systems with distributed power-by-wire systems because of the promising benefits of higher reliability, increased dynamic performance, convenient maintainability, weight reduction and easier manufacture. LOMs to the LEHA, a kind which of hydraulic pump controlled actuator, leads tooutput consequence of good and convenient maintenance, requires excellent dynamic displacement with external reliability, high power density So and convenient requires excellent load force and large force output. All these research observer to focused the ripple compensation control to improve the force position trajectory works above on force the LOM itself, not taking multiple external loads such as accuracy spring force, All these research works above focused on the itself, not taking multiple external force loads rectangular force and damping force into consideration to study the dynamic performance of the LOM. Cao applied weights to a complementary and modular linear flux-switching permanent-magnet motor on the force control research [19].
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