Aiming at analyzing of the phenomenon of "back rub" in the process of the chair linkage,the condition of achieving the "zero back rub" of the office chair was obtained.The parametric modeling of the linkage mechanism of the office chair was carried out on ADAMS/ View to realization the performance of "zero back rub" in the process of linkage.and connections between point1 with point3 and point2 with point3 was established.The point1 is both on the back of the chair and on the back of people.The point2 is both on the back of the chair and on the waist of people.The point3 is both on the board of seat and on the hips of people.In the process of linkage,the line length is the known standard value,and the influence degree of many variables on the objective function was analyzed,and the main design variables were determined.The normalized weighting method was used to optimize and validate.The optimization results show that in the process of linkage,the chair achieves the target of "zero rub back" and the comfort of the office chair was increased.%针对办公椅座背联动过程中的“搓背”现象的分析,得到了实现办公椅“零搓背”的条件.在ADAMS/View中对办公椅联动机构进行了参数化建模,以实现联动过程中的“零搓背”性能,以人与靠背接触的背靠点和腰靠点分别与座板上坐点建立了连线,以连线长度在联动过程中为给定标准值为目标,并将诸多变量对目标函数的影响程度进行了分析,确定了主要设计变量.使用规格化加权法进行了优化和验证.优化结果表明:办公椅靠背在联动过程中的实现了零搓背,提高了办公椅联动过程中的舒适性.
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