A New Approach to Defining Human Touch Temperature Standards
A New Approach to Defining Human Touch Temperature Standards
复制标题
定义人体接触温度标准的新方法
DOI：
10.2514/6.2010-6310
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Kenneth J. Stroud
中科院分区：
文献类型：
--
作者：
E. Ungar;Kenneth J. Stroud
定义皮肤与冷热物体接触的触摸温度限制对于防止疼痛和皮肤损伤非常重要，这可能会影响任务表现或成为安全问题。疼痛和皮肤损伤取决于接触时的皮肤温度，而皮肤温度又取决于接触热导、物体的初始温度及其材料特性。然而，以前的航天器标准根据所有材料的单个物体温度值错误地定义了接触温度限制，或者提供了有限的特定材料值，这些值未涵盖可能的设计范围。已经为更新的 NASA 标准开发了一种新方法，该方法根据裸露皮肤接触热和冷物体时疼痛发作时的皮肤温度来定义接触温度限制。作者开发了一种分析验证方法，用于确定接触时间从 1 秒到无穷大的安全热和冷物体温度。
Defining touch temperature limits for skin contact with both hot and cold objects is important to prevent pain and skin damage, which may affect task performance or become a safety concern. Pain and skin damage depend on the skin temperature during contact, which depends on the contact thermal conductance, the object's initial temperature, and its material properties. However, previous spacecraft standards have incorrectly defined touch temperature limits in terms of a single object temperature value for all materials, or have provided limited material-specific values which do not cover the gamut of likely designs. A new approach has been developed for updated NASA standards, which defines touch temperature limits in terms of skin temperature at pain onset for bare skin contact with hot and cold objects. The authors have developed an analytical verification method for safe hot and cold object temperatures for contact times from 1 second to infinity.