The smelting and rolling of 38Si7 hot -rolled spring rounds is according to DIN 17221 - 99.
38Si7热轧弹簧圆钢是按照德标DIN17221—88的要求冶炼、轧制、出口,用于制造钢轨紧固件及弹簧。
There is no function of directly creating cylindrical spring in UG modeling, and it is very complex to create cylindrical spring in UG by other means.
针对UG中缺少圆柱弹簧的直接造型功能,而且在UG中生成弹簧造型过程复杂繁琐的问题,作者通过利用NURBS曲线逼近螺旋线的方法,将NURBS曲线与UG二次开发有机地结合起来,程序化地生成圆柱弹簧,实现了在UG中直接生成圆柱弹簧造型的功能。
Development & research on performance test rig for cylindrical coil springs used on locos and cars;
机车车辆高圆弹簧性能试验台的开发与研究
An new design of changing cyclinder spiral spring into equal pitch circular cone spring is presented for spring system and the calculation formula of circular cone spring s bending and transverse stiffness is derived.
鉴于此 ,提出了弹簧系统的改进方案 ,即将圆柱螺旋压缩弹簧改为等节距圆锥压缩弹簧 ,并推导出了圆锥弹簧横向和弯曲刚度计算公式 。