Touchscreen has gained increasing popularity. However, little is known about touchscreen use in vibration environments. This study aimed to examine the effects of control-to-display gain (GAIN) and operation precision requirement on touchscreen operations in varied vibration environments. Twenty participants attended an experiment where they were instructed to perform three types of basic touchscreen operation tasks in static, low vibration, and high vibration environments, respectively. Five GAINs (0.75, 1, 2, 3 and 4) and three operation precision requirements (90%, 95%, and 99%) were examined. The results indicated that vibration exerted adverse effects on task performance, and increased perceived workload, perceived task difficulty and discomfort. Task completion time showed a U-shaped curve as GAIN increased. Lowering operation precision requirement improved task performance and reduced perceived workload, especially in vibration environments and at larger GAINs. The findings provide practical implications on the design of usable touchscreen interfaces in vibration environments.

触摸屏越来越受欢迎。但是，对于在振动环境中使用触摸屏知之甚少。这项研究旨在研究在各种振动环境下，控制显示增益（GAIN）和操作精度要求对触摸屏操作的影响。20名参与者参加了一个实验，指示他们分别在静态，低振动和高振动环境中执行三种类型的基本触摸屏操作任务。检查了五个增益（0.75、1、2、3和4）和三个操作精度要求（90％，95％和99％）。结果表明，振动对任务绩效产生不利影响，并增加了感知的工作量，感知的任务难度和不适感。任务完成时间随着增益增加而呈U形曲线。降低操作精度要求可改善任务性能并减少可感知的工作量，尤其是在振动环境和较大增益的情况下。这些发现为振动环境下可用触摸屏界面的设计提供了实际意义。