The invention discloses a method for evaluating a gravity environment in a landing simulation test of a lander, which comprises the following steps of: firstly, determining an evaluation index for gravity compensation, then determining a real landing speed interval [V2, V1] in an ignition stage according to a landing speed given value Vr, enabling the lander to land at the speed of Vr, V1 and V2 at a 0-degree slope in a non-ignition stage to obtain a gravity compensation value, and finally evaluating the gravity environment in the landing simulation test of the lander. The method comprises the following steps: in a landing stage, respectively landing on slopes with different inclination angles at a speed of Vr to obtain a gravity compensation value, in an ignition stage, landing a lander on a simulated earth surface to obtain a gravity compensation value, and finally, judging whether the gravity compensation values in the steps meet a gravity compensation evaluation index or not to evaluate whether a gravity environment in a grounding simulation test is accurate or not. According to the method, variable landing speeds, landing surface gradients and the like are considered, the capability of providing the extraterrestrial celestial body gravity environment by the grounding simulation test device can be fully tested, parameters of the grounding simulation test device can be adjusted according to the evaluation result, and gravity environment simulation can be accurately provided.

本发明公开一种着陆器触地模拟试验中重力环境的评价方法，首先确定用于重力补偿评价指标，后据降落速度给定值Vr确定点火阶段的真实降落速度区间[V2，V1]，在不点火阶段，使着陆器在0°坡以Vr、V1和V2的速度着陆，得到重力补偿值，以Vr的速度分别着陆于不同倾斜角度的斜坡，得到重力补偿值，在点火阶段，使着陆器着陆于模拟地表，得到重力补偿值，最后通过判断上述步骤中的重力补偿值是否均满足重力补偿评价指标，评价触地模拟试验中重力环境是否准确。本发明考虑了多变的着陆速度及着陆表面倾斜度等，能够充分检验触地模拟试验装置提供地外天体重力环境的能力，根据评价结果，可对触地模拟试验装置的参数进行调整，有利于准确提供重力环境模拟。