The present invention is to properly manage life of an accumulator and extend the life of the accumulator.;A gas supply system includes a control section, an acquiring section, a classifying section, and a judging section. The acquiring section acquires stress amplitude of accumulators from a pressure difference between first pressure on the gas storage side and second pressure on the gas lead-out side. The classifying section classifies the stress amplitude into a plurality of groups. The judging section divides the calculated acquirement number ni of the stress amplitude for each of the groups by the predetermined breaking cycle number Ni, and determines a fatigue degree ∑ni/Ni. In a case where this value becomes a predetermined threshold value or more, the judging section judges that the accumulator comes to the end of the life.
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机译：本发明是为了适当地管理蓄能器的寿命并延长蓄能器的寿命。供气系统包括控制部分，获取部分，分类部分和判断部分。获取部从储气侧的第一压力与气体引出侧的第二压力之间的压力差获取蓄能器的应力振幅。分类部将应力振幅分类为多个组。判断部将计算出的各组的应力振幅的获取数n i 除以预定的破坏循环数Ni，求出疲劳度∑n i / N i 。在该值变为预定阈值以上的情况下，判断部判断为蓄能器寿命终止。
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