子母弹中多体偏心差速俘能装置效能预测仿真

Effectiveness Prediction and Simulation of the Eccentric Differential Energy Harvesting Device Characterized by Multi-body for Cluster Bomb

子母弹载活性电源一直存在存储时间短及自放电的问题,由于自发电装置要求能满足长期存储且无自放电现象。对于子母弹药多个子弹同时自发电则是一大难点,针对子母弹的自发电弹载电源提出了一种特殊的行星轮多体偏心差速俘能装置,利用发射后母弹飞行过程中的高速旋转运动,装置向内部子弹传递转速与转矩,为子弹后续发电提供能量输入。为预测装置的效能,先对装置模型进行了理论分析计算,再利用SOLIDWORKS与ADAMS软件建立三维动力学模型仿真,分析了质量块对效能的影响,得到了装置的振荡规律,为子母弹弹载电源设计优化提供了理论依据。

Short storage time and self- discharge are common problems in on - board active power, while self - generating device is able to meet long - term storage requirements and has no self - discharge phenomenon. For cluster bomb,simultaneous self - generating of multiple bombs is a major difficulty. Target to spontaneous on - board power supply, a special eccentric differential energy harvesting device which characterized by planetary gear and multi - body is presented. By utilizing the high - speed rotary motion during the flight of mother - bomb after launching, the harvesting device can transmit rotation and torque to the son - bomb inside and provide energy input for generator. To predict the effectiveness of this device, the theoretical analysis is firstly carried out, then the three - dimensional kinetic model is set up by using SOLIDWORKS and ADAMS to analyze the effect of mass on the effectiveness, and the oscillation regulation of device is achieved. The result provides a theoretical reference for the design and optimization of on - board power supply used in cluster bombs.