
等加速度
A calculation criterion of harmonic cam with constant acceleration for fuel injection pumps is presented.
本文提出了具有等加速度段的谐波函数供油凸轮的计算准则。
We know the equations so well from our last lecture from one-dimensional motion with constant acceleration.
上一课的方程我们,已经比较熟了,常数加速度的,一维运动方程。
The second time derivative is the constant acceleration.
它的二阶导数就是这个恒加速度。
Is the well-known equation for velocity under constant acceleration. This equation is linear; the slope of the line is the acceleration.
就是众所周知的恒加速度的速度方程。这个方程是线性的,这条直线的斜率就是加速度。
It focuses on parameter measurement for constant acceleration overdamped coil type geophones.
研究恒加速度过阻尼动圈式地震检波器参数的测量方法。
According to the flight feature of high-speed unmanned aerial vehicle(UAV), a kind of federated Kalman filtering based on constant acceleration moving is presented.
针对高速无人飞行器运动的特点,设计了一种基于匀加速直线运动的联邦卡尔曼滤波器。
A calculation criterion of harmonic cam with constant acceleration for fuel injection pumps is presented. The cam profiles with constant acceleration section can be conveniently calculated.
本文提出了具有等加速度段的谐波函数供油凸轮的计算准则。采用本方法能够迅速、方便地计算出具有等加速度段的供油凸轮型线;
This paper generally designs a kind of constant acceleration spray nozzle, gives a method of building constant acceleration curve of equation.
设计了一种等加速喷嘴,给出了建立等加速曲线方程的方法。
The previous calculation determined the acceleration of the lander assuming a constant acceleration.
我们在之前所做的计算中规定了自由落体的加速度是一个衡量。
The paper presents a model for calculating the capability of the shipborne gun weapon system when firing against the air target that moving in a constant acceleration and in a straight line.
提出了目标作匀加速直线运动情况下舰炮武器系统对空射击能力指标计算的数学模型。
In other words, the gravity drop is a constant acceleration and the hand is accelerating, even during the key drop.
换句话说,自然落下是等加速度的运动,手也是在加速,即使在下键的过程中也是如此。
With the constant acceleration of informational globalization, journalistic writing which is involved in the process of news spreading is unable to adapt to the situation.
随着信息全球化的不断加快,处于新闻传播过程中的新闻写作显得有些力不从心。
Constant acceleration of globalization has brought about greater demand for highly qualified professional translators.
随着全球化进程的不断加快,经济建设领域对职业翻译人才的需求越来越高。
And discusses a machining way when the hole is thin and long, then take the bus-bar of the hole as the constant acceleration curve spray nozzle part.
讨论了内孔为细长孔,孔的母线为等加速曲线的喷嘴零件的加工方法。
Based on the dynamic modeling in state space, the state space model of GPS ise established: constant speed model and constant acceleration model.
建立了GPS系统的状态空间模型:定常速度模型和定常加速度模型。
Envelope migration of radial target with constant acceleration was researched in chapter four.
第四章对径向匀加速目标的包络走动补偿问题进行了研究。
This paper provides a new method for forecasting the future positions of a moving object that moves at a constant velocity or constant acceleration.
本文提出了一种计算匀速或匀加速运动目标的空间位置分析预测的新理论。
Compared with Z-axis acceleration and deceleration, the reaction time was shortened during off-vertical axis constant angular acceleration and deceleration.
偏心加速度或负加速度旋转时相对于Z轴旋转,反应时缩短。
The stability of Tongxue oral liquid was stu***d with the method of constant temperature acceleration test according to the principle of chemical dynamics.
根据化学动力学原理,采用恒温加速试验法,对通血口服液稳定性进行了研究。
Conclusion: The establishment of the classical constant temperature acceleration experiment is practical for quick determination of the effective time and shortening the developing time of new drugs.
结论:本方法的建立对快速确定药品的保质期,缩短新药开发周期具有实际意义。
The rotational speed of the rotor is supposed increasing at a constant angular acceleration. The contact force theory is used to calculate the impacting forces and friction forces.
转子以定常角加速度通过临界转速时产生碰摩, 碰摩力由库仑摩擦定理确定。
A constant, external acceleration applied to the cloth.
施加于布料的外力,一个恒量。
Maybe there is some constant tap-acceleration in the direction the bird was moving.
我们猜测,或许点击的时候,小鸟会在它当时的运动方向上,按照恒定的“点击加速度”加速。
I now would like to write down, in most general form the equation for the position and the velocity as a function of time for a one-dimensional motion whereby the acceleration is constant.
我来把更一般的形式,写出来吧,在一维空间中,位置和速度,作为时间函数的,一般形式,这里的加速度是一个常数。
Since this is a parabola, you know that the acceleration is constant so I hope you will conclude immediately that a must be a constant.
既然这是条抛物线,你们知道加速度是不变的,我希望你们能马上推断出,加速度是守恒的。
So notice that the acceleration is constant in time, is not changing but the velocity is changing.
请注意此处的加速度,是一个常数,不随时间变化而变化,不过速度是变化的。
恒定加速度(Constant Acceleration)是物理学中描述物体运动状态的核心概念,指物体在运动过程中速度随时间均匀变化的特性。具体表现为单位时间内速度的变化量(即加速度)保持不变,其数学表达式为:
$$
a = frac{Delta v}{Delta t}
$$
其中,( a ) 表示加速度,( Delta v ) 是速度变化量,( Delta t ) 是时间间隔。
运动学方程
恒定加速度下,物体的位移(( s ))和速度(( v ))可通过以下公式描述(来源:Georgia State University《HyperPhysics》):
$$
v = v_0 + at
s = v_0 t + frac{1}{2} a t
$$
这里 ( v_0 ) 为初速度,( t ) 为时间。
牛顿第二定律关联
当物体所受合力恒定时,其加速度恒定。例如,自由下落的物体(忽略空气阻力)仅受重力作用,加速度为重力加速度 ( g approx 9.8 , text{m/s} )(来源:NASA《运动学基础》)。
工程与日常场景
恒定加速度模型广泛应用于汽车加速测试、电梯运动设计等领域。例如,汽车以固定油门加速时,可近似为恒定加速度运动(来源:MIT《经典力学导论》)。
通过上述理论框架与实例,恒定加速度的概念在科学研究和工程实践中均具备明确的定义与应用价值。
"Constant acceleration"(恒定加速度)是物理学中描述物体运动状态的一个术语,具体含义如下:
恒定加速度指物体在运动过程中,加速度的大小和方向均保持不变。这意味着物体的速度随时间以均匀的速率变化。例如,忽略空气阻力时,自由下落的物体因重力产生的加速度接近恒定(约9.8 m/s²)。
在恒定加速度下,物体的运动可用以下公式描述:
如果需要进一步探讨具体场景或公式推导,可以结合实际问题补充说明。
【别人正在浏览】