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本文用平均转矩差法研究了空间单质体与双质体自同步振动机的同步理论,对下列问题予以考虑: 1.自同步振动机的同步性条件; 2.振动阻尼对振动机同步性条件与同步运转状态稳定性的影响; 3.两电动机转矩差(△Mg)与两转轴上的摩擦转矩差(△M_f)对振动机工作的影响。 求得同步性判据为 |D_a|≥1,D_a=m_0~2φ~2r~2W/△M_g-△M_f 式中,D_a——同步性指数; W——稳定性指数; m_0、r——偏心质量及其偏心距; φ——角速度。 并求得同步运转状态的稳定性判据为 Wcos△α_0≥0 即 W≥0 (当△a_0=-90°～90°) W≤0 (当△α_0=90°～270°) △α_0为两偏心质量的相位差角。 自同步振动机的稳定性指数W,当振动机为空间单质体和空间双质体时其表达式分别为式(21)及式(54)。上述判别式通过实验验证,结果是满意的。
In this paper, the average torque difference method was used to study the synchronization between space single plastids and two plastid self-synchronous oscillators, and the following problems were considered: 1. Synchronization conditions of self-synchronous vibrator; 2. Synchronization of vibration damping to vibrator Conditions and synchronous operation state stability; 3. Two motor torque difference (△ Mg) and the two shaft friction torque difference (△ M_f) on the vibration machine work. D_a | ≥1, D_a = m_0 ~ 2φ ~ 2r ~ 2W / △ M_g- △ M_f where D_a-- synchronization index; W-- stability index; m_0, r-- Eccentric mass and its eccentricity; φ - angular velocity. And determine the stability criterion for the synchronous operation state as Wcos △ α_0≥0 or W≥0 (when Δa_0 = -90 ° ~90 °) W≤0 (when Δα_0 = 90 ° ~270 °) △ α_0 is Two eccentric mass phase angle difference. The stability index W of a self-synchronous vibration machine is expressed as Eqs. (21) and (54), respectively, when the vibrator is a space-borne single-body and a space-borne double body. The above discriminant is verified by experiments, the result is satisfactory.