No-inclination vibration isolation method for satellite sensitive load

The invention relates to a no-inclination vibration isolation method for satellite sensitive load. Aiming to performance indicator requirements of load, the bandwidth and decoupling degree of a vibration isolation system are analyzed, influences on system performances by different arranging forms and different vertical and horizontal stiffness ratios are compared, and a no-inclination vibration isolation system arranging method is provided. The vibration isolation system comprises three soft units with the vertical and horizontal stiffness ratio ranging from 0.4 to 0.8; the units are connected in parallel and support, are distributed evenly around a load centroid vertical line as an axis and are placed without inclination. The system is free of transit connecting blocks, light in weight, low in centroid, and excellent in six-free-degree vibration isolation performances. By the aid of the method, weight of an objected to be vibration isolated can be beard, manufacturability can be guaranteed, vibration transmission can be isolated effectively, and the purposes of low vibration isolation system frequency band and good system decoupling performance can be achieved.