Mechanical factors effecting on the vibration noise and resonance performance of IR detector were analyzed for the method of impact excitation using a hammer.
采用锤击法，利用冲击激励的宽频特性，研究了金属结构红外探测器的共振特性及影响振动噪声的力学因素。
Mechanical impact dynamics is used to analyse the production and spread of stress wave when hydraulic pile hammer hammerblows piles, the stress wave influence the course of driving pile.
本文应用冲击机械系统动力学分析打桩过程中锤体与桩撞击时应力波的产生、传播以及该波对沉桩过程的影响。
Piping vibration or damage caused due to dynamic loads, such as mechanical vibration, acoustic vibration, fluid hammer, pulsation and relief valve discharge.
由于动荷载引起的管道震动和损坏，例如机械震动，声波震动，液击，压力脉动和泄放阀门泄放时引起的震动。
Way for ash cleaning of horizontally arranged steam boilers normally adopts mechanical rapping. The device USES accelerated velocity produced by hammer rapping to remove fly ash.
卧式布置的余热锅炉清灰方式一般采用机械振打清灰，该装置采用锤子打击产生的加速度去除飞灰。
Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established.
建立了新型开铁口机电动钻冲机构的力学模型，计算了它的固有频率和主振型。
For, as a mechanical device, or with a wooden hammer (rubber hammer) or cushion rubber pad hammer, prohibit hammering, to avoid damage of stainless steel.
矫形时，尽量采用机械装置，或用木锤(橡皮锤)或垫橡皮垫锤击，禁止用铁锤锤击，以避免损伤不锈钢件。
Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established. The natural frequencies and mode shapes of the model are calculated.
建立了新型开铁口机电动钻冲机构的力学模型，计算了它的固有频率和主振型。
Mechanical model of the drill carriage with rotation and vibrating hammer for the new type taphole drill is established. The natural frequencies and mode shapes of the model are calculated.
建立了新型开铁口机电动钻冲机构的力学模型，计算了它的固有频率和主振型。
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