某公司生产的X型号彩色电视机的可靠性指标MTBF=12000h,经可靠性测试实验,证实该产品失效分布服从指数分布,求下列可靠性指标:
(1)产品的失效率______ (2)当产品工作时间t=1000h 时,可靠度_____ 和累积失效概率函数值_______
A: 5.5*10^(-5)/小时,0.91,0.09
B: 8.33*10^(-5)/小时,0.92,0.08
C: 6.55*10^(-5)/小时,0.95,0.05
D: 7.55*10^(-5)/小时,0.96,0.04
(1)产品的失效率______ (2)当产品工作时间t=1000h 时,可靠度_____ 和累积失效概率函数值_______
A: 5.5*10^(-5)/小时,0.91,0.09
B: 8.33*10^(-5)/小时,0.92,0.08
C: 6.55*10^(-5)/小时,0.95,0.05
D: 7.55*10^(-5)/小时,0.96,0.04
举一反三
- 已知某品牌双开门冰箱的可靠性指标MTBF=15000h,且该产品失效分布服从指数分布,求(1)产品的失效率____(2)当产品工作时间t=1500h 时,<br/>可靠度______和累积失效概率函数值_______。 A: 6.67*10^(-5)/小时,0.905,0.095 B: 3.67*10^(-5)/小时,0.92,0.08 C: 5.67*10^(-5)/小时,0.95,0.05 D: 2.67*10^(-5)/小时,0.96,0.04
- 某构件当其可靠指标β减小时,相应失效概率将_________, 结构可靠性_________
- 在结构设计中,失效概率与可靠度指标的关系为( ) A: 失效概率越大,可靠度指标越大,结构可靠性越差; B: 失效概率越大,可靠度指标越小,结构可靠性越差; C: 失效概率越大,可靠度指标越小,结构越可靠; D: 失效概率越大,可靠度指标越大,结构越可靠;
- 某构件当其可靠指标减小时,相应失效概率将随之__________。
- 某构件当其可靠指标β减小时,相应失效概率将随之